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vnote/src/vmdeditor.cpp

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#include "vmdeditor.h"
#include <QtWidgets>
#include <QMenu>
#include <QDebug>
#include <QScopedPointer>
#include <QClipboard>
#include <QMimeDatabase>
#include <QTemporaryFile>
#include <QProgressDialog>
#include "vdocument.h"
#include "utils/veditutils.h"
#include "vedittab.h"
#include "pegmarkdownhighlighter.h"
#include "vcodeblockhighlighthelper.h"
#include "vmdeditoperations.h"
#include "vtableofcontent.h"
#include "utils/veditutils.h"
#include "dialog/vselectdialog.h"
#include "dialog/vconfirmdeletiondialog.h"
#include "vtextblockdata.h"
#include "vorphanfile.h"
#include "vnotefile.h"
#include "vpreviewmanager.h"
#include "utils/viconutils.h"
#include "dialog/vcopytextashtmldialog.h"
#include "utils/vwebutils.h"
#include "dialog/vinsertlinkdialog.h"
#include "utils/vclipboardutils.h"
#include "vplantumlhelper.h"
#include "vgraphvizhelper.h"
#include "vmdtab.h"
#include "vdownloader.h"
extern VWebUtils *g_webUtils;
extern VConfigManager *g_config;
#define LINE_NUMBER_AREA_FONT_DELTA -2
VMdEditor::VMdEditor(VFile *p_file,
VDocument *p_doc,
MarkdownConverterType p_type,
const QSharedPointer<VTextEditCompleter> &p_completer,
QWidget *p_parent)
: VTextEdit(p_parent),
VEditor(p_file, this, p_completer),
m_pegHighlighter(NULL),
m_freshEdit(true),
m_textToHtmlDialog(NULL),
m_zoomDelta(0),
m_editTab(NULL),
m_copyTimeStamp(0)
{
Q_ASSERT(p_file->getDocType() == DocType::Markdown);
VEditor::init();
// Hook functions from VEditor.
connect(this, &VTextEdit::cursorPositionChanged,
this, [this]() {
highlightOnCursorPositionChanged();
});
connect(document(), &QTextDocument::contentsChange,
this, [this](int p_position, int p_charsRemoved, int p_charsAdded) {
Q_UNUSED(p_position);
if (p_charsRemoved > 0 || p_charsAdded > 0) {
updateTimeStamp();
}
});
connect(this, &VTextEdit::selectionChanged,
this, [this]() {
highlightSelectedWord();
});
// End.
setReadOnly(true);
m_pegHighlighter = new PegMarkdownHighlighter(document(), this);
m_pegHighlighter->init(g_config->getMdHighlightingStyles(),
g_config->getCodeBlockStyles(),
g_config->getEnableMathjax(),
g_config->getMarkdownHighlightInterval());
connect(m_pegHighlighter, &PegMarkdownHighlighter::headersUpdated,
this, &VMdEditor::updateHeaders);
// After highlight, the cursor may trun into non-visible. We should make it visible
// in this case.
connect(m_pegHighlighter, &PegMarkdownHighlighter::highlightCompleted,
this, [this]() {
makeBlockVisible(textCursor().block());
if (m_freshEdit) {
m_freshEdit = false;
emit m_object->ready();
}
});
m_cbHighlighter = new VCodeBlockHighlightHelper(m_pegHighlighter,
p_doc,
p_type);
m_previewMgr = new VPreviewManager(this, m_pegHighlighter);
connect(m_pegHighlighter, &PegMarkdownHighlighter::imageLinksUpdated,
m_previewMgr, &VPreviewManager::updateImageLinks);
connect(m_previewMgr, &VPreviewManager::requestUpdateImageLinks,
m_pegHighlighter, &PegMarkdownHighlighter::updateHighlight);
m_editOps = new VMdEditOperations(this, m_file);
connect(m_editOps, &VEditOperations::statusMessage,
m_object, &VEditorObject::statusMessage);
connect(m_editOps, &VEditOperations::vimStatusUpdated,
m_object, &VEditorObject::vimStatusUpdated);
connect(this, &VTextEdit::cursorPositionChanged,
this, &VMdEditor::updateCurrentHeader);
connect(this, &VTextEdit::cursorPositionChanged,
m_object, &VEditorObject::cursorPositionChanged);
setDisplayScaleFactor(VUtils::calculateScaleFactor());
updateFontAndPalette();
updateConfig();
}
void VMdEditor::updateFontAndPalette()
{
QFont font(g_config->getMdEditFont());
setFont(font);
const QPalette &palette = g_config->getMdEditPalette();
/*
Do not use this function in conjunction with Qt Style Sheets. When
using style sheets, the palette of a widget can be customized using
the "color", "background-color", "selection-color",
"selection-background-color" and "alternate-background-color".
*/
// setPalette(palette);
// setTextColor(palette.color(QPalette::Text));
// Only this could override the font-family set of QWidget in QSS.
setFontAndPaletteByStyleSheet(font, palette);
font.setPointSize(font.pointSize() + LINE_NUMBER_AREA_FONT_DELTA);
updateLineNumberAreaWidth(QFontMetrics(font));
}
void VMdEditor::beginEdit()
{
updateConfig();
initInitImages();
setModified(false);
setReadOnlyAndHighlightCurrentLine(false);
emit statusChanged();
if (m_freshEdit) {
m_pegHighlighter->updateHighlight();
relayout();
} else {
updateHeaders(m_pegHighlighter->getHeaderRegions());
}
}
void VMdEditor::endEdit()
{
setReadOnlyAndHighlightCurrentLine(true);
clearUnusedImages();
}
void VMdEditor::saveFile()
{
Q_ASSERT(m_file->isModifiable());
if (!document()->isModified()) {
return;
}
m_file->setContent(toPlainText());
setModified(false);
clearUnusedImages();
initInitImages();
}
void VMdEditor::reloadFile()
{
bool readonly = isReadOnly();
setReadOnly(true);
const QString &content = m_file->getContent();
setPlainText(content);
setModified(false);
setReadOnly(readonly);
if (!m_freshEdit) {
m_freshEdit = true;
refreshPreview();
}
}
bool VMdEditor::scrollToBlock(int p_blockNumber)
{
QTextBlock block = document()->findBlockByNumber(p_blockNumber);
if (block.isValid()) {
VEditUtils::scrollBlockInPage(this, block.blockNumber(), 0);
moveCursor(QTextCursor::EndOfBlock);
return true;
}
return false;
}
// Get the visual offset of a block.
#define GETVISUALOFFSETY(x) (contentOffsetY() + (int)(x).y())
void VMdEditor::makeBlockVisible(const QTextBlock &p_block)
{
if (!p_block.isValid() || !p_block.isVisible()) {
return;
}
QScrollBar *vbar = verticalScrollBar();
if (!vbar || (vbar->minimum() == vbar->maximum())) {
// No vertical scrollbar. No need to scroll.
return;
}
int height = rect().height();
QScrollBar *hbar = horizontalScrollBar();
if (hbar && (hbar->minimum() != hbar->maximum())) {
height -= hbar->height();
}
bool moved = false;
QAbstractTextDocumentLayout *layout = document()->documentLayout();
QRectF rt = layout->blockBoundingRect(p_block);
int y = GETVISUALOFFSETY(rt);
int rectHeight = (int)rt.height();
// Handle the case rectHeight >= height.
if (rectHeight >= height) {
if (y < 0) {
// Need to scroll up.
while (y + rectHeight < height && vbar->value() > vbar->minimum()) {
moved = true;
vbar->setValue(vbar->value() - vbar->singleStep());
rt = layout->blockBoundingRect(p_block);
rectHeight = (int)rt.height();
y = GETVISUALOFFSETY(rt);
}
} else if (y > 0) {
// Need to scroll down.
while (y > 0 && vbar->value() < vbar->maximum()) {
moved = true;
vbar->setValue(vbar->value() + vbar->singleStep());
rt = layout->blockBoundingRect(p_block);
rectHeight = (int)rt.height();
y = GETVISUALOFFSETY(rt);
}
if (y < 0) {
// One step back.
moved = true;
vbar->setValue(vbar->value() - vbar->singleStep());
}
}
return;
}
// There is an extra line leading in the layout, so there will always be a scroll
// action to scroll the page down.
while (y < 0 && vbar->value() > vbar->minimum()) {
moved = true;
vbar->setValue(vbar->value() - vbar->singleStep());
rt = layout->blockBoundingRect(p_block);
y = GETVISUALOFFSETY(rt);
}
if (moved) {
return;
}
while (y + rectHeight > height && vbar->value() < vbar->maximum()) {
vbar->setValue(vbar->value() + vbar->singleStep());
rt = layout->blockBoundingRect(p_block);
rectHeight = (int)rt.height();
y = GETVISUALOFFSETY(rt);
}
}
static QAction *getActionByObjectName(const QList<QAction *> &p_actions,
const QString &p_objName)
{
for (auto act : p_actions) {
if (act->objectName() == p_objName) {
return act;
}
}
return NULL;
}
// Insert @p_action into @p_menu after action @p_after.
static void insertActionAfter(QAction *p_after, QAction *p_action, QMenu *p_menu)
{
p_menu->insertAction(p_after, p_action);
if (p_after) {
p_menu->removeAction(p_after);
p_menu->insertAction(p_action, p_after);
}
}
static QAction *insertMenuAfter(QAction *p_after, QMenu *p_subMenu, QMenu *p_menu)
{
QAction *menuAct = p_menu->insertMenu(p_after, p_subMenu);
if (p_after) {
p_menu->removeAction(p_after);
p_menu->insertAction(menuAct, p_after);
}
return menuAct;
}
void VMdEditor::contextMenuEvent(QContextMenuEvent *p_event)
{
if (!m_editTab || !m_editTab->isEditMode()) {
return;
}
QScopedPointer<QMenu> menu(createStandardContextMenu());
menu->setToolTipsVisible(true);
QAction *copyAct, *pasteAct, *firstAct;
{
const QList<QAction *> actions = menu->actions();
firstAct = actions.isEmpty() ? NULL : actions.first();
copyAct = getActionByObjectName(actions, "edit-copy");
pasteAct = getActionByObjectName(actions, "edit-paste");
}
if (copyAct && copyAct->isEnabled()) {
initCopyAsMenu(copyAct, menu.data());
}
if (pasteAct && pasteAct->isEnabled()) {
QClipboard *clipboard = QApplication::clipboard();
const QMimeData *mimeData = clipboard->mimeData();
if (mimeData->hasText()) {
initPasteAsBlockQuoteMenu(pasteAct, menu.data());
}
if (mimeData->hasHtml()) {
initPasteAfterParseMenu(pasteAct, menu.data());
}
}
if (!textCursor().hasSelection()) {
initLinkAndPreviewMenu(firstAct, menu.data(), p_event->pos());
QAction *saveExitAct = new QAction(VIconUtils::menuIcon(":/resources/icons/save_exit.svg"),
tr("&Save Changes And Read"),
menu.data());
saveExitAct->setToolTip(tr("Save changes and exit edit mode"));
connect(saveExitAct, &QAction::triggered,
this, [this]() {
emit m_object->saveAndRead();
});
QAction *discardExitAct = new QAction(VIconUtils::menuIcon(":/resources/icons/discard_exit.svg"),
tr("&Discard Changes And Read"),
menu.data());
discardExitAct->setToolTip(tr("Discard changes and exit edit mode"));
connect(discardExitAct, &QAction::triggered,
this, [this]() {
emit m_object->discardAndRead();
});
VMdTab *mdtab = dynamic_cast<VMdTab *>(m_editTab);
if (mdtab) {
QAction *toggleLivePreviewAct = new QAction(tr("Live Preview For Graphs"), menu.data());
toggleLivePreviewAct->setToolTip(tr("Toggle live preview panel for graphs"));
VUtils::fixTextWithCaptainShortcut(toggleLivePreviewAct, "LivePreview");
connect(toggleLivePreviewAct, &QAction::triggered,
this, [this, mdtab]() {
mdtab->toggleLivePreview();
});
menu->insertAction(firstAct, toggleLivePreviewAct);
menu->insertAction(toggleLivePreviewAct, discardExitAct);
menu->insertAction(discardExitAct, saveExitAct);
menu->insertSeparator(toggleLivePreviewAct);
} else {
menu->insertAction(firstAct, discardExitAct);
menu->insertAction(discardExitAct, saveExitAct);
menu->insertSeparator(discardExitAct);
}
if (firstAct) {
menu->insertSeparator(firstAct);
}
}
menu->exec(p_event->globalPos());
}
void VMdEditor::mousePressEvent(QMouseEvent *p_event)
{
if (handleMousePressEvent(p_event)) {
return;
}
VTextEdit::mousePressEvent(p_event);
emit m_object->mousePressed(p_event);
}
void VMdEditor::mouseDoubleClickEvent(QMouseEvent *p_event)
{
VTextEdit::mouseDoubleClickEvent(p_event);
emit m_object->mouseDoubleClicked(p_event);
}
void VMdEditor::mouseReleaseEvent(QMouseEvent *p_event)
{
if (handleMouseReleaseEvent(p_event)) {
return;
}
VTextEdit::mouseReleaseEvent(p_event);
emit m_object->mouseReleased(p_event);
}
void VMdEditor::mouseMoveEvent(QMouseEvent *p_event)
{
if (handleMouseMoveEvent(p_event)) {
return;
}
VTextEdit::mouseMoveEvent(p_event);
emit m_object->mouseMoved(p_event);
}
QVariant VMdEditor::inputMethodQuery(Qt::InputMethodQuery p_query) const
{
QVariant ret;
if (handleInputMethodQuery(p_query, ret)) {
return ret;
}
return VTextEdit::inputMethodQuery(p_query);
}
bool VMdEditor::isBlockVisible(const QTextBlock &p_block)
{
if (!p_block.isValid() || !p_block.isVisible()) {
return false;
}
QScrollBar *vbar = verticalScrollBar();
if (!vbar || !vbar->isVisible()) {
// No vertical scrollbar.
return true;
}
int height = rect().height();
QScrollBar *hbar = horizontalScrollBar();
if (hbar && hbar->isVisible()) {
height -= hbar->height();
}
QAbstractTextDocumentLayout *layout = document()->documentLayout();
QRectF rt = layout->blockBoundingRect(p_block);
int y = GETVISUALOFFSETY(rt);
int rectHeight = (int)rt.height();
return (y >= 0 && y < height) || (y < 0 && y + rectHeight > 0);
}
static void addHeaderSequence(QVector<int> &p_sequence, int p_level, int p_baseLevel)
{
Q_ASSERT(p_level >= 1 && p_level < p_sequence.size());
if (p_level < p_baseLevel) {
p_sequence.fill(0);
return;
}
++p_sequence[p_level];
for (int i = p_level + 1; i < p_sequence.size(); ++i) {
p_sequence[i] = 0;
}
}
static QString headerSequenceStr(const QVector<int> &p_sequence)
{
QString res;
for (int i = 1; i < p_sequence.size(); ++i) {
if (p_sequence[i] != 0) {
res = res + QString::number(p_sequence[i]) + '.';
} else if (res.isEmpty()) {
continue;
} else {
break;
}
}
return res;
}
static void insertSequenceToHeader(QTextCursor& p_cursor,
const QTextBlock &p_block,
QRegExp &p_reg,
QRegExp &p_preReg,
const QString &p_seq)
{
if (!p_block.isValid()) {
return;
}
QString text = p_block.text();
bool matched = p_reg.exactMatch(text);
Q_ASSERT(matched);
matched = p_preReg.exactMatch(text);
Q_ASSERT(matched);
int start = p_reg.cap(1).length() + 1;
int end = p_preReg.cap(1).length();
Q_ASSERT(start <= end);
p_cursor.setPosition(p_block.position() + start);
if (start != end) {
p_cursor.setPosition(p_block.position() + end, QTextCursor::KeepAnchor);
}
if (p_seq.isEmpty()) {
p_cursor.removeSelectedText();
} else {
p_cursor.insertText(p_seq + ' ');
}
}
void VMdEditor::updateHeaderSequenceByConfigChange()
{
updateHeadersHelper(m_pegHighlighter->getHeaderRegions(), true);
}
void VMdEditor::updateHeadersHelper(const QVector<VElementRegion> &p_headerRegions, bool p_configChanged)
{
QTextDocument *doc = document();
QVector<VTableOfContentItem> headers;
QVector<int> headerBlockNumbers;
QVector<QString> headerSequences;
if (!p_headerRegions.isEmpty()) {
headers.reserve(p_headerRegions.size());
headerBlockNumbers.reserve(p_headerRegions.size());
headerSequences.reserve(p_headerRegions.size());
}
// Assume that each block contains only one line
// Only support # syntax for now
QRegExp headerReg(VUtils::c_headerRegExp);
int baseLevel = -1;
for (auto const & reg : p_headerRegions) {
QTextBlock block = doc->findBlock(reg.m_startPos);
if (!block.isValid()) {
continue;
}
if (!block.contains(reg.m_endPos - 1)) {
qWarning() << "header accross multiple blocks, starting from block"
<< block.blockNumber()
<< block.text();
}
if (headerReg.exactMatch(block.text())) {
int level = headerReg.cap(1).length();
VTableOfContentItem header(headerReg.cap(2).trimmed(),
level,
block.blockNumber(),
headers.size());
headers.append(header);
headerBlockNumbers.append(block.blockNumber());
headerSequences.append(headerReg.cap(3));
if (baseLevel == -1) {
baseLevel = level;
} else if (baseLevel > level) {
baseLevel = level;
}
}
}
m_headers.clear();
bool autoSequence = m_config.m_enableHeadingSequence
&& !isReadOnly()
&& m_file->isModifiable();
int headingSequenceBaseLevel = g_config->getHeadingSequenceBaseLevel();
if (headingSequenceBaseLevel < 1 || headingSequenceBaseLevel > 6) {
headingSequenceBaseLevel = 1;
}
QVector<int> seqs(7, 0);
QRegExp preReg(VUtils::c_headerPrefixRegExp);
int curLevel = baseLevel - 1;
QTextCursor cursor(doc);
if(autoSequence || p_configChanged) {
cursor.beginEditBlock();
}
for (int i = 0; i < headers.size(); ++i) {
VTableOfContentItem &item = headers[i];
while (item.m_level > curLevel + 1) {
curLevel += 1;
// Insert empty level which is an invalid header.
m_headers.append(VTableOfContentItem(c_emptyHeaderName,
curLevel,
-1,
m_headers.size()));
if (autoSequence || p_configChanged) {
addHeaderSequence(seqs, curLevel, headingSequenceBaseLevel);
}
}
item.m_index = m_headers.size();
m_headers.append(item);
curLevel = item.m_level;
if (autoSequence || p_configChanged) {
addHeaderSequence(seqs, item.m_level, headingSequenceBaseLevel);
QString seqStr = autoSequence ? headerSequenceStr(seqs) : "";
if (headerSequences[i] != seqStr) {
// Insert correct sequence.
insertSequenceToHeader(cursor,
doc->findBlockByNumber(headerBlockNumbers[i]),
headerReg,
preReg,
seqStr);
}
}
}
if (autoSequence || p_configChanged) {
cursor.endEditBlock();
}
emit headersChanged(m_headers);
updateCurrentHeader();
}
void VMdEditor::updateHeaders(const QVector<VElementRegion> &p_headerRegions)
{
updateHeadersHelper(p_headerRegions, false);
}
void VMdEditor::updateCurrentHeader()
{
emit currentHeaderChanged(textCursor().block().blockNumber());
}
void VMdEditor::initInitImages()
{
m_initImages = VUtils::fetchImagesFromMarkdownFile(m_file,
ImageLink::LocalRelativeInternal);
}
void VMdEditor::clearUnusedImages()
{
QVector<ImageLink> images = VUtils::fetchImagesFromMarkdownFile(m_file,
ImageLink::LocalRelativeInternal);
QSet<QString> unusedImages;
if (!m_insertedImages.isEmpty()) {
for (int i = 0; i < m_insertedImages.size(); ++i) {
const ImageLink &link = m_insertedImages[i];
if (link.m_type != ImageLink::LocalRelativeInternal) {
continue;
}
int j;
for (j = 0; j < images.size(); ++j) {
if (VUtils::equalPath(link.m_path, images[j].m_path)) {
break;
}
}
// This inserted image is no longer in the file.
if (j == images.size()) {
unusedImages.insert(link.m_path);
}
}
m_insertedImages.clear();
}
for (int i = 0; i < m_initImages.size(); ++i) {
const ImageLink &link = m_initImages[i];
V_ASSERT(link.m_type == ImageLink::LocalRelativeInternal);
int j;
for (j = 0; j < images.size(); ++j) {
if (VUtils::equalPath(link.m_path, images[j].m_path)) {
break;
}
}
// Original local relative image is no longer in the file.
if (j == images.size()) {
unusedImages.insert(link.m_path);
}
}
if (!unusedImages.isEmpty()) {
if (g_config->getConfirmImagesCleanUp()) {
QVector<ConfirmItemInfo> items;
for (auto const & img : unusedImages) {
items.push_back(ConfirmItemInfo(img,
img,
img,
NULL));
}
QString text = tr("Following images seems not to be used in this note anymore. "
"Please confirm the deletion of these images.");
QString info = tr("Deleted files could be found in the recycle "
"bin of this note.<br>"
"Click \"Cancel\" to leave them untouched.");
VConfirmDeletionDialog dialog(tr("Confirm Cleaning Up Unused Images"),
text,
info,
items,
true,
true,
true,
this);
unusedImages.clear();
if (dialog.exec()) {
items = dialog.getConfirmedItems();
g_config->setConfirmImagesCleanUp(dialog.getAskAgainEnabled());
for (auto const & item : items) {
unusedImages.insert(item.m_name);
}
}
}
for (auto const & item : unusedImages) {
bool ret = false;
if (m_file->getType() == FileType::Note) {
const VNoteFile *tmpFile = dynamic_cast<const VNoteFile *>((VFile *)m_file);
ret = VUtils::deleteFile(tmpFile->getNotebook(), item, false);
} else if (m_file->getType() == FileType::Orphan) {
const VOrphanFile *tmpFile = dynamic_cast<const VOrphanFile *>((VFile *)m_file);
ret = VUtils::deleteFile(tmpFile, item, false);
} else {
Q_ASSERT(false);
}
if (!ret) {
qWarning() << "fail to delete unused original image" << item;
} else {
qDebug() << "delete unused image" << item;
}
}
}
m_initImages.clear();
}
void VMdEditor::keyPressEvent(QKeyEvent *p_event)
{
int key = p_event->key();
int modifiers = p_event->modifiers();
switch (key) {
case Qt::Key_Minus:
case Qt::Key_Underscore:
// Zoom out.
if (modifiers & Qt::ControlModifier) {
zoomPage(false);
return;
}
break;
case Qt::Key_Plus:
case Qt::Key_Equal:
// Zoom in.
if (modifiers & Qt::ControlModifier) {
zoomPage(true);
return;
}
break;
case Qt::Key_0:
// Restore zoom.
if (modifiers & Qt::ControlModifier) {
if (m_zoomDelta > 0) {
zoomPage(false, m_zoomDelta);
} else if (m_zoomDelta < 0) {
zoomPage(true, -m_zoomDelta);
}
return;
}
break;
default:
break;
}
if (m_editOps && m_editOps->handleKeyPressEvent(p_event)) {
return;
}
// Esc to exit edit mode when Vim is disabled.
if (key == Qt::Key_Escape) {
emit m_object->discardAndRead();
return;
}
VTextEdit::keyPressEvent(p_event);
}
bool VMdEditor::canInsertFromMimeData(const QMimeData *p_source) const
{
return p_source->hasImage()
|| p_source->hasUrls()
|| VTextEdit::canInsertFromMimeData(p_source);
}
void VMdEditor::insertFromMimeData(const QMimeData *p_source)
{
if (processHtmlFromMimeData(p_source)) {
return;
}
if (processImageFromMimeData(p_source)) {
return;
}
if (processUrlFromMimeData(p_source)) {
return;
}
if (processTextFromMimeData(p_source)) {
return;
}
VTextEdit::insertFromMimeData(p_source);
}
void VMdEditor::imageInserted(const QString &p_path, const QString &p_url)
{
ImageLink link;
link.m_path = p_path;
link.m_url = p_url;
if (m_file->useRelativeImageFolder()) {
link.m_type = ImageLink::LocalRelativeInternal;
} else {
link.m_type = ImageLink::LocalAbsolute;
}
m_insertedImages.append(link);
}
bool VMdEditor::scrollToHeader(int p_blockNumber)
{
if (p_blockNumber < 0) {
return false;
}
return scrollToBlock(p_blockNumber);
}
int VMdEditor::indexOfCurrentHeader() const
{
if (m_headers.isEmpty()) {
return -1;
}
int blockNumber = textCursor().block().blockNumber();
for (int i = m_headers.size() - 1; i >= 0; --i) {
if (!m_headers[i].isEmpty()
&& m_headers[i].m_blockNumber <= blockNumber) {
return i;
}
}
return -1;
}
bool VMdEditor::jumpTitle(bool p_forward, int p_relativeLevel, int p_repeat)
{
if (m_headers.isEmpty()) {
return false;
}
QTextCursor cursor = textCursor();
int cursorLine = cursor.block().blockNumber();
int targetIdx = -1;
// -1: skip level check.
int targetLevel = 0;
int idx = indexOfCurrentHeader();
if (idx == -1) {
// Cursor locates at the beginning, before any headers.
if (p_relativeLevel < 0 || !p_forward) {
return false;
}
}
int delta = 1;
if (!p_forward) {
delta = -1;
}
bool firstHeader = true;
for (targetIdx = idx == -1 ? 0 : idx;
targetIdx >= 0 && targetIdx < m_headers.size();
targetIdx += delta) {
const VTableOfContentItem &header = m_headers[targetIdx];
if (header.isEmpty()) {
continue;
}
if (targetLevel == 0) {
// The target level has not been init yet.
Q_ASSERT(firstHeader);
targetLevel = header.m_level;
if (p_relativeLevel < 0) {
targetLevel += p_relativeLevel;
if (targetLevel < 1) {
// Invalid level.
return false;
}
} else if (p_relativeLevel > 0) {
targetLevel = -1;
}
}
if (targetLevel == -1 || header.m_level == targetLevel) {
if (firstHeader
&& (cursorLine == header.m_blockNumber
|| p_forward)
&& idx != -1) {
// This header is not counted for the repeat.
firstHeader = false;
continue;
}
if (--p_repeat == 0) {
// Found.
break;
}
} else if (header.m_level < targetLevel) {
// Stop by higher level.
return false;
}
firstHeader = false;
}
if (targetIdx < 0 || targetIdx >= m_headers.size()) {
return false;
}
// Jump to target header.
int line = m_headers[targetIdx].m_blockNumber;
if (line > -1) {
QTextBlock block = document()->findBlockByNumber(line);
if (block.isValid()) {
cursor.setPosition(block.position());
setTextCursor(cursor);
return true;
}
}
return false;
}
void VMdEditor::scrollBlockInPage(int p_blockNum, int p_dest)
{
VEditUtils::scrollBlockInPage(this, p_blockNum, p_dest);
}
void VMdEditor::updateTextEditConfig()
{
setBlockImageEnabled(g_config->getEnablePreviewImages());
setImageWidthConstrainted(g_config->getEnablePreviewImageConstraint());
setLineLeading(m_config.m_lineDistanceHeight);
setImageLineColor(g_config->getEditorPreviewImageLineFg());
int lineNumber = g_config->getEditorLineNumber();
if (lineNumber < (int)LineNumberType::None || lineNumber >= (int)LineNumberType::Invalid) {
lineNumber = (int)LineNumberType::None;
}
setLineNumberType((LineNumberType)lineNumber);
setLineNumberColor(g_config->getEditorLineNumberFg(),
g_config->getEditorLineNumberBg());
m_previewMgr->setPreviewEnabled(g_config->getEnablePreviewImages());
}
void VMdEditor::updateConfig()
{
updateEditConfig();
updateTextEditConfig();
}
QString VMdEditor::getContent() const
{
return toPlainText();
}
void VMdEditor::setContent(const QString &p_content, bool p_modified)
{
if (p_modified) {
QTextCursor cursor = textCursor();
cursor.select(QTextCursor::Document);
cursor.insertText(p_content);
setTextCursor(cursor);
} else {
setPlainText(p_content);
}
}
void VMdEditor::refreshPreview()
{
m_previewMgr->refreshPreview();
}
void VMdEditor::updateInitAndInsertedImages(bool p_fileChanged, UpdateAction p_act)
{
if (p_fileChanged && p_act == UpdateAction::InfoChanged) {
return;
}
if (!isModified()) {
Q_ASSERT(m_insertedImages.isEmpty());
m_insertedImages.clear();
if (!m_initImages.isEmpty()) {
// Re-generate init images.
initInitImages();
}
return;
}
// Update init images.
QVector<ImageLink> tmp = m_initImages;
initInitImages();
Q_ASSERT(tmp.size() == m_initImages.size());
QDir dir(m_file->fetchBasePath());
// File has been moved.
if (p_fileChanged) {
// Since we clear unused images once user save the note, all images
// in m_initImages now are moved already.
// Update inserted images.
// Inserted images should be moved manually here. Then update all the
// paths.
for (auto & link : m_insertedImages) {
if (link.m_type == ImageLink::LocalAbsolute) {
continue;
}
QString newPath = QDir::cleanPath(dir.absoluteFilePath(link.m_url));
if (VUtils::equalPath(link.m_path, newPath)) {
continue;
}
if (!VUtils::copyFile(link.m_path, newPath, true)) {
VUtils::showMessage(QMessageBox::Warning,
tr("Warning"),
tr("Fail to move unsaved inserted image %1 to %2.")
.arg(link.m_path)
.arg(newPath),
tr("Please check it manually to avoid image loss."),
QMessageBox::Ok,
QMessageBox::Ok,
this);
continue;
}
link.m_path = newPath;
}
} else {
// Directory changed.
// Update inserted images.
for (auto & link : m_insertedImages) {
if (link.m_type == ImageLink::LocalAbsolute) {
continue;
}
QString newPath = QDir::cleanPath(dir.absoluteFilePath(link.m_url));
link.m_path = newPath;
}
}
}
void VMdEditor::handleCopyAsAction(QAction *p_act)
{
++m_copyTimeStamp;
QTextCursor cursor = textCursor();
Q_ASSERT(cursor.hasSelection());
QString text = VEditUtils::selectedText(cursor);
Q_ASSERT(!text.isEmpty());
Q_ASSERT(!m_textToHtmlDialog);
m_textToHtmlDialog = new VCopyTextAsHtmlDialog(text, p_act->data().toString(), this);
// For Hoedown, we use marked.js to convert the text to have a general interface.
emit requestTextToHtml(text, 0, m_copyTimeStamp);
m_textToHtmlDialog->exec();
delete m_textToHtmlDialog;
m_textToHtmlDialog = NULL;
}
void VMdEditor::textToHtmlFinished(int p_id,
int p_timeStamp,
const QUrl &p_baseUrl,
const QString &p_html)
{
Q_UNUSED(p_id);
if (m_textToHtmlDialog && p_timeStamp == m_copyTimeStamp) {
m_textToHtmlDialog->setConvertedHtml(p_baseUrl, p_html);
}
}
void VMdEditor::htmlToTextFinished(int p_id, int p_timeStamp, const QString &p_text)
{
Q_UNUSED(p_id);
if (m_copyTimeStamp == p_timeStamp && !p_text.isEmpty()) {
emit m_object->statusMessage(tr("Inserting parsed Markdown text"));
QString text(p_text);
if (g_config->getParsePasteLocalImage()) {
// May take long time.
replaceTextWithLocalImages(text);
}
m_editOps->insertText(text);
emit m_object->statusMessage(tr("Parsed Markdown text inserted"));
}
}
void VMdEditor::wheelEvent(QWheelEvent *p_event)
{
if (handleWheelEvent(p_event)) {
return;
}
VTextEdit::wheelEvent(p_event);
}
void VMdEditor::zoomPage(bool p_zoomIn, int p_range)
{
const int minSize = 2;
int delta = p_zoomIn ? p_range : -p_range;
// zoomIn() and zoomOut() does not work if we set stylesheet of VMdEditor.
int ptSz = font().pointSize() + delta;
if (ptSz < minSize) {
ptSz = minSize;
}
setFontPointSizeByStyleSheet(ptSz);
emit m_object->statusMessage(QObject::tr("Set base font point size %1").arg(ptSz));
m_zoomDelta += delta;
QVector<HighlightingStyle> &styles = m_pegHighlighter->getStyles();
for (auto & it : styles) {
int size = it.format.fontPointSize();
if (size == 0) {
// It contains no font size format.
continue;
}
size += delta;
if (size < minSize) {
size = minSize;
}
it.format.setFontPointSize(size);
}
QHash<QString, QTextCharFormat> &cbStyles = m_pegHighlighter->getCodeBlockStyles();
for (auto it = cbStyles.begin(); it != cbStyles.end(); ++it) {
int size = it.value().fontPointSize();
if (size == 0) {
// It contains no font size format.
continue;
}
size += delta;
if (size < minSize) {
size = minSize;
}
it.value().setFontPointSize(size);
}
m_pegHighlighter->rehighlight();
}
QAction *VMdEditor::initCopyAsMenu(QAction *p_after, QMenu *p_menu)
{
QStringList targets = g_webUtils->getCopyTargetsName();
if (targets.isEmpty()) {
return NULL;
}
QMenu *subMenu = new QMenu(tr("Copy HTML As"), p_menu);
subMenu->setToolTipsVisible(true);
for (auto const & target : targets) {
QAction *act = new QAction(target, subMenu);
act->setData(target);
act->setToolTip(tr("Copy selected content as HTML using rules specified by target %1").arg(target));
subMenu->addAction(act);
}
connect(subMenu, &QMenu::triggered,
this, &VMdEditor::handleCopyAsAction);
return insertMenuAfter(p_after, subMenu, p_menu);
}
QAction *VMdEditor::initPasteAsBlockQuoteMenu(QAction *p_after, QMenu *p_menu)
{
QAction *pbqAct = new QAction(tr("Paste As Block &Quote"), p_menu);
pbqAct->setToolTip(tr("Paste text from clipboard as block quote"));
connect(pbqAct, &QAction::triggered,
this, [this]() {
QClipboard *clipboard = QApplication::clipboard();
const QMimeData *mimeData = clipboard->mimeData();
QString text = mimeData->text();
QTextCursor cursor = textCursor();
cursor.removeSelectedText();
QTextBlock block = cursor.block();
QString indent = VEditUtils::fetchIndentSpaces(block);
// Insert '> ' in front of each line.
VEditUtils::insertBeforeEachLine(text, indent + QStringLiteral("> "));
if (VEditUtils::isSpaceBlock(block)) {
if (!indent.isEmpty()) {
// Remove the indent.
cursor.movePosition(QTextCursor::StartOfBlock);
cursor.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
cursor.removeSelectedText();
}
} else {
// Insert a new block.
VEditUtils::insertBlock(cursor, false);
}
cursor.insertText(text);
setTextCursor(cursor);
});
insertActionAfter(p_after, pbqAct, p_menu);
return pbqAct;
}
QAction *VMdEditor::initPasteAfterParseMenu(QAction *p_after, QMenu *p_menu)
{
QAction *papAct = new QAction(tr("Paste Parsed &Markdown Text"), p_menu);
VUtils::fixTextWithCaptainShortcut(papAct, "ParseAndPaste");
papAct->setToolTip(tr("Parse HTML to Markdown text and paste"));
connect(papAct, &QAction::triggered,
this, &VMdEditor::parseAndPaste);
insertActionAfter(p_after, papAct, p_menu);
return papAct;
}
void VMdEditor::insertImageLink(const QString &p_text, const QString &p_url)
{
VInsertLinkDialog dialog(tr("Insert Image Link"),
"",
"",
p_text,
p_url,
true,
this);
if (dialog.exec() == QDialog::Accepted) {
QString linkText = dialog.getLinkText();
QString linkUrl = dialog.getLinkUrl();
static_cast<VMdEditOperations *>(m_editOps)->insertImageLink(linkText, linkUrl);
}
}
VWordCountInfo VMdEditor::fetchWordCountInfo() const
{
VWordCountInfo info;
QTextDocument *doc = document();
// Char without spaces.
int cns = 0;
int wc = 0;
// Remove th ending new line.
int cc = doc->characterCount() - 1;
// 0 - not in word;
// 1 - in English word;
// 2 - in non-English word;
int state = 0;
for (int i = 0; i < cc; ++i) {
QChar ch = doc->characterAt(i);
if (ch.isSpace()) {
if (state) {
state = 0;
}
continue;
} else if (ch.unicode() < 128) {
if (state != 1) {
state = 1;
++wc;
}
} else {
state = 2;
++wc;
}
++cns;
}
info.m_mode = VWordCountInfo::Edit;
info.m_wordCount = wc;
info.m_charWithoutSpacesCount = cns;
info.m_charWithSpacesCount = cc;
return info;
}
void VMdEditor::setEditTab(VEditTab *p_editTab)
{
m_editTab = p_editTab;
}
void VMdEditor::setFontPointSizeByStyleSheet(int p_ptSize)
{
QFont ft = font();
ft.setPointSize(p_ptSize);
const QPalette &palette = g_config->getMdEditPalette();
setFontAndPaletteByStyleSheet(ft, palette);
ensurePolished();
ft.setPointSize(p_ptSize + LINE_NUMBER_AREA_FONT_DELTA);
updateLineNumberAreaWidth(QFontMetrics(ft));
}
void VMdEditor::setFontAndPaletteByStyleSheet(const QFont &p_font, const QPalette &p_palette)
{
QString styles(QString("VMdEditor, VLineNumberArea {"
"font-family: \"%1\";"
"font-size: %2pt;"
"color: %3;"
"background-color: %4; } "
"VLineNumberArea {"
"font-size: %5pt; }")
.arg(p_font.family())
.arg(p_font.pointSize())
.arg(p_palette.color(QPalette::Text).name())
.arg(p_palette.color(QPalette::Base).name())
.arg(p_font.pointSize() + LINE_NUMBER_AREA_FONT_DELTA));
setStyleSheet(styles);
}
int VMdEditor::lineNumberAreaWidth() const
{
return VTextEdit::lineNumberAreaWidth();
}
void VMdEditor::initLinkAndPreviewMenu(QAction *p_before, QMenu *p_menu, const QPoint &p_pos)
{
QTextCursor cursor = cursorForPosition(p_pos);
const int pos = cursor.position();
QTextBlock block = cursor.block();
const QString text(block.text());
// Image.
QRegExp regExp(VUtils::c_imageLinkRegExp);
if (regExp.indexIn(text) > -1) {
const QVector<VElementRegion> &imgRegs = m_pegHighlighter->getImageRegions();
for (auto const & reg : imgRegs) {
if (!reg.contains(pos)) {
continue;
}
if (reg.m_endPos > block.position() + text.length()) {
return;
}
QString linkText = text.mid(reg.m_startPos - block.position(),
reg.m_endPos - reg.m_startPos);
QString surl = VUtils::fetchImageLinkUrl(linkText);
if (surl.isEmpty()) {
return;
}
QString imgPath = VUtils::linkUrlToPath(m_file->fetchBasePath(), surl);
bool isLocalFile = QFileInfo::exists(imgPath);
QAction *viewImageAct = new QAction(tr("View Image"), p_menu);
connect(viewImageAct, &QAction::triggered,
this, [this, imgPath]() {
QDesktopServices::openUrl(VUtils::pathToUrl(imgPath));
});
p_menu->insertAction(p_before, viewImageAct);
QAction *copyImageLinkAct = new QAction(tr("Copy Image URL"), p_menu);
connect(copyImageLinkAct, &QAction::triggered,
this, [this, imgPath]() {
QClipboard *clipboard = QApplication::clipboard();
VClipboardUtils::setLinkToClipboard(clipboard,
imgPath,
QClipboard::Clipboard);
});
p_menu->insertAction(p_before, copyImageLinkAct);
if (isLocalFile) {
QAction *copyImagePathAct = new QAction(tr("Copy Image Path"), p_menu);
connect(copyImagePathAct, &QAction::triggered,
this, [this, imgPath]() {
QClipboard *clipboard = QApplication::clipboard();
QMimeData *data = new QMimeData();
data->setText(imgPath);
VClipboardUtils::setMimeDataToClipboard(clipboard,
data,
QClipboard::Clipboard);
});
p_menu->insertAction(p_before, copyImagePathAct);
QAction *copyImageAct = new QAction(tr("Copy Image"), p_menu);
connect(copyImageAct, &QAction::triggered,
this, [this, imgPath]() {
QClipboard *clipboard = QApplication::clipboard();
clipboard->clear();
QImage img = VUtils::imageFromFile(imgPath);
if (!img.isNull()) {
VClipboardUtils::setImageToClipboard(clipboard,
img,
QClipboard::Clipboard);
}
});
p_menu->insertAction(p_before, copyImageAct);
} else {
// Copy in-place preview.
initInPlacePreviewMenu(p_before, p_menu, block, pos);
}
p_menu->insertSeparator(p_before);
return;
}
}
// Link.
QRegExp regExp2(VUtils::c_linkRegExp);
QString linkText;
int p = 0;
const int pib = pos - block.position();
while (p < text.size()) {
int idx = text.indexOf(regExp2, p);
if (idx == -1) {
break;
}
p = idx + regExp2.matchedLength();
if (pib >= idx && pib < p) {
linkText = regExp2.cap(2);
break;
}
}
if (!linkText.isEmpty()) {
QString linkUrl = VUtils::linkUrlToPath(m_file->fetchBasePath(), linkText);
bool isLocalFile = QFileInfo::exists(linkUrl);
QAction *viewLinkAct = new QAction(tr("View Link"), p_menu);
connect(viewLinkAct, &QAction::triggered,
this, [this, linkUrl]() {
QDesktopServices::openUrl(VUtils::pathToUrl(linkUrl));
});
p_menu->insertAction(p_before, viewLinkAct);
QAction *copyLinkAct = new QAction(tr("Copy Link URL"), p_menu);
connect(copyLinkAct, &QAction::triggered,
this, [this, linkUrl]() {
QClipboard *clipboard = QApplication::clipboard();
VClipboardUtils::setLinkToClipboard(clipboard,
linkUrl,
QClipboard::Clipboard);
});
p_menu->insertAction(p_before, copyLinkAct);
if (isLocalFile) {
QAction *copyLinkPathAct = new QAction(tr("Copy Link Path"), p_menu);
connect(copyLinkPathAct, &QAction::triggered,
this, [this, linkUrl]() {
QClipboard *clipboard = QApplication::clipboard();
QMimeData *data = new QMimeData();
data->setText(linkUrl);
VClipboardUtils::setMimeDataToClipboard(clipboard,
data,
QClipboard::Clipboard);
});
p_menu->insertAction(p_before, copyLinkPathAct);
}
p_menu->insertSeparator(p_before);
return;
}
bool needSeparator = false;
if (initInPlacePreviewMenu(p_before, p_menu, block, pos)) {
needSeparator = true;
}
if (initExportAndCopyMenu(p_before, p_menu, block, pos)) {
needSeparator = true;
}
if (needSeparator) {
p_menu->insertSeparator(p_before);
}
}
bool VMdEditor::initInPlacePreviewMenu(QAction *p_before,
QMenu *p_menu,
const QTextBlock &p_block,
int p_pos)
{
VTextBlockData *data = VTextBlockData::blockData(p_block);
if (!data) {
return false;
}
const QVector<VPreviewInfo *> &previews = data->getPreviews();
if (previews.isEmpty()) {
return false;
}
QPixmap image;
QString background;
int pib = p_pos - p_block.position();
for (auto info : previews) {
const VPreviewedImageInfo &pii = info->m_imageInfo;
if (pii.contains(pib)) {
const QPixmap *img = findImage(pii.m_imageName);
if (img) {
image = *img;
background = pii.m_background;
}
break;
}
}
if (image.isNull()) {
return false;
}
QAction *copyImageAct = new QAction(tr("Copy In-Place Preview"), p_menu);
connect(copyImageAct, &QAction::triggered,
this, [this, image, background]() {
QColor co(background);
if (!co.isValid()) {
co = palette().color(QPalette::Base);
}
QImage img(image.size(), QImage::Format_ARGB32);
img.fill(co);
QPainter pter(&img);
pter.drawPixmap(img.rect(), image);
QClipboard *clipboard = QApplication::clipboard();
VClipboardUtils::setImageToClipboard(clipboard,
img,
QClipboard::Clipboard);
});
p_menu->insertAction(p_before, copyImageAct);
return true;
}
bool VMdEditor::initExportAndCopyMenu(QAction *p_before,
QMenu *p_menu,
const QTextBlock &p_block,
int p_pos)
{
Q_UNUSED(p_pos);
int state = p_block.userState();
if (state != HighlightBlockState::CodeBlockStart
&& state != HighlightBlockState::CodeBlock
&& state != HighlightBlockState::CodeBlockEnd) {
return false;
}
int blockNum = p_block.blockNumber();
const QVector<VCodeBlock> &cbs = m_pegHighlighter->getCodeBlocks();
int idx = 0;
for (idx = 0; idx < cbs.size(); ++idx) {
if (cbs[idx].m_startBlock <= blockNum
&& cbs[idx].m_endBlock >= blockNum) {
break;
}
}
if (idx >= cbs.size()) {
return false;
}
const VCodeBlock &cb = cbs[idx];
if (cb.m_lang != "puml" && cb.m_lang != "dot") {
return false;
}
QMenu *subMenu = new QMenu(tr("Copy Graph"), p_menu);
subMenu->setToolTipsVisible(true);
QAction *pngAct = new QAction(tr("PNG"), subMenu);
pngAct->setToolTip(tr("Export graph as PNG to a temporary file and copy"));
connect(pngAct, &QAction::triggered,
this, [this, lang = cb.m_lang, text = cb.m_text]() {
exportGraphAndCopy(lang, text, "png");
});
subMenu->addAction(pngAct);
QAction *svgAct = new QAction(tr("SVG"), subMenu);
svgAct->setToolTip(tr("Export graph as SVG to a temporary file and copy"));
connect(svgAct, &QAction::triggered,
this, [this, lang = cb.m_lang, text = cb.m_text]() {
exportGraphAndCopy(lang, text, "svg");
});
subMenu->addAction(svgAct);
p_menu->insertMenu(p_before, subMenu);
return true;
}
void VMdEditor::exportGraphAndCopy(const QString &p_lang,
const QString &p_text,
const QString &p_format)
{
m_exportTempFile.reset(new QTemporaryFile(QDir::tempPath()
+ QDir::separator()
+ "XXXXXX." + p_format));
if (!m_exportTempFile->open()) {
VUtils::showMessage(QMessageBox::Warning,
tr("Warning"),
tr("Fail to open a temporary file for export."),
"",
QMessageBox::Ok,
QMessageBox::Ok,
this);
m_exportTempFile.clear();
return;
}
emit m_object->statusMessage(tr("Exporting graph"));
QString filePath(m_exportTempFile->fileName());
QByteArray out;
if (p_lang == "puml") {
out = VPlantUMLHelper::process(p_format,
VEditUtils::removeCodeBlockFence(p_text));
} else if (p_lang == "dot") {
out = VGraphvizHelper::process(p_format,
VEditUtils::removeCodeBlockFence(p_text));
}
if (out.isEmpty() || m_exportTempFile->write(out) == -1) {
m_exportTempFile->close();
VUtils::showMessage(QMessageBox::Warning,
tr("Warning"),
tr("Fail to export graph."),
"",
QMessageBox::Ok,
QMessageBox::Ok,
this);
} else {
m_exportTempFile->close();
QClipboard *clipboard = QApplication::clipboard();
clipboard->clear();
QImage img;
img.loadFromData(out, p_format.toLocal8Bit().data());
if (!img.isNull()) {
VClipboardUtils::setImageAndLinkToClipboard(clipboard,
img,
filePath,
QClipboard::Clipboard);
emit m_object->statusMessage(tr("Graph exported and copied"));
} else {
emit m_object->statusMessage(tr("Fail to read exported image: %1").arg(filePath));
}
}
}
void VMdEditor::parseAndPaste()
{
if (!m_editTab
|| !m_editTab->isEditMode()
|| isReadOnly()) {
return;
}
QClipboard *clipboard = QApplication::clipboard();
const QMimeData *mimeData = clipboard->mimeData();
QString html(mimeData->html());
if (!html.isEmpty()) {
++m_copyTimeStamp;
emit requestHtmlToText(html, 0, m_copyTimeStamp);
}
}
bool VMdEditor::processHtmlFromMimeData(const QMimeData *p_source)
{
if (!p_source->hasHtml()) {
return false;
}
// Handle <img>.
QRegExp reg("<img ([^>]*)src=\"([^\"]+)\"([^>]*)>");
QString html(p_source->html());
if (reg.indexIn(html) != -1 && VUtils::onlyHasImgInHtml(html)) {
if (p_source->hasImage()) {
// Both image data and URL are embedded.
VSelectDialog dialog(tr("Insert From Clipboard"), this);
dialog.addSelection(tr("Insert From URL"), 0);
dialog.addSelection(tr("Insert From Image Data"), 1);
dialog.addSelection(tr("Insert As Image Link"), 2);
if (dialog.exec() == QDialog::Accepted) {
int selection = dialog.getSelection();
if (selection == 1) {
// Insert from image data.
m_editOps->insertImageFromMimeData(p_source);
return true;
} else if (selection == 2) {
// Insert as link.
insertImageLink("", reg.cap(2));
return true;
}
} else {
return true;
}
}
m_editOps->insertImageFromURL(QUrl(reg.cap(2)));
return true;
}
return false;
}
bool VMdEditor::processImageFromMimeData(const QMimeData *p_source)
{
if (!p_source->hasImage()) {
return false;
}
// Image data in the clipboard
if (p_source->hasText()) {
VSelectDialog dialog(tr("Insert From Clipboard"), this);
dialog.addSelection(tr("Insert As Image"), 0);
dialog.addSelection(tr("Insert As Text"), 1);
dialog.addSelection(tr("Insert As Image Link"), 2);
if (dialog.exec() == QDialog::Accepted) {
int selection = dialog.getSelection();
if (selection == 1) {
// Insert as text.
Q_ASSERT(p_source->hasText() && p_source->hasImage());
VTextEdit::insertFromMimeData(p_source);
return true;
} else if (selection == 2) {
// Insert as link.
insertImageLink("", p_source->text());
return true;
}
} else {
return true;
}
}
m_editOps->insertImageFromMimeData(p_source);
return true;
}
bool VMdEditor::processUrlFromMimeData(const QMimeData *p_source)
{
if (!p_source->hasUrls()) {
return false;
}
QList<QUrl> urls = p_source->urls();
if (urls.size() == 1) {
bool isImage = VUtils::isImageURL(urls[0]);
bool isLocalFile = urls[0].isLocalFile()
&& QFileInfo::exists(urls[0].toLocalFile());
QString localTextFilePath;
if (!isImage && isLocalFile) {
localTextFilePath = urls[0].toLocalFile();
QMimeDatabase mimeDatabase;
const QMimeType mimeType = mimeDatabase.mimeTypeForFile(localTextFilePath);
if (mimeType.isValid() && !mimeType.inherits(QStringLiteral("text/plain"))) {
localTextFilePath.clear();
}
}
VSelectDialog dialog(tr("Insert From Clipboard"), this);
if (isImage) {
dialog.addSelection(tr("Insert As Image"), 0);
dialog.addSelection(tr("Insert As Image Link"), 1);
}
dialog.addSelection(tr("Insert As Link"), 2);
if (isLocalFile) {
dialog.addSelection(tr("Insert As Relative Link"), 3);
}
dialog.addSelection(tr("Insert As Text"), 4);
if (!localTextFilePath.isEmpty()) {
dialog.addSelection(tr("Insert File Content"), 5);
}
// FIXME: After calling dialog.exec(), p_source->hasUrl() returns false.
if (dialog.exec() == QDialog::Accepted) {
bool relativeLink = false;
switch (dialog.getSelection()) {
case 0:
{
// Insert As Image.
m_editOps->insertImageFromURL(urls[0]);
return true;
}
case 1:
{
// Insert As Image Link.
insertImageLink("", urls[0].isLocalFile() ? urls[0].toString(QUrl::EncodeSpaces)
: urls[0].toString());
return true;
}
case 3:
// Insert As Relative link.
relativeLink = true;
V_FALLTHROUGH;
case 2:
{
// Insert As Link.
QString ut;
if (relativeLink) {
QDir dir(m_file->fetchBasePath());
ut = dir.relativeFilePath(urls[0].toLocalFile());
ut = QUrl(ut).toString(QUrl::EncodeSpaces);
} else {
ut = urls[0].isLocalFile() ? urls[0].toString(QUrl::EncodeSpaces)
: urls[0].toString();
}
VInsertLinkDialog ld(QObject::tr("Insert Link"),
"",
"",
"",
ut,
false,
this);
if (ld.exec() == QDialog::Accepted) {
QString linkText = ld.getLinkText();
QString linkUrl = ld.getLinkUrl();
Q_ASSERT(!linkText.isEmpty() && !linkUrl.isEmpty());
m_editOps->insertLink(linkText, linkUrl);
}
return true;
}
case 4:
{
// Insert As Text.
if (p_source->hasText()) {
m_editOps->insertText(p_source->text());
} else {
m_editOps->insertText(urls[0].toString());
}
return true;
}
case 5:
{
// Insert File Content.
Q_ASSERT(!localTextFilePath.isEmpty());
m_editOps->insertText(VUtils::readFileFromDisk(localTextFilePath));
return true;
}
default:
Q_ASSERT(false);
break;
}
}
return true;
}
return false;
}
bool VMdEditor::processTextFromMimeData(const QMimeData *p_source)
{
if (!p_source->hasText()) {
return false;
}
QString text = p_source->text();
if (VUtils::isImageURLText(text)) {
// The text is a URL to an image.
VSelectDialog dialog(tr("Insert From Clipboard"), this);
dialog.addSelection(tr("Insert As Image"), 0);
dialog.addSelection(tr("Insert As Text"), 1);
dialog.addSelection(tr("Insert As Image Link"), 2);
if (dialog.exec() == QDialog::Accepted) {
int selection = dialog.getSelection();
if (selection == 0) {
// Insert as image.
QUrl url;
if (QFileInfo::exists(text)) {
url = QUrl::fromLocalFile(text);
} else {
url = QUrl(text);
}
if (url.isValid()) {
m_editOps->insertImageFromURL(url);
}
return true;
} else if (selection == 2) {
// Insert as link.
insertImageLink("", text);
return true;
}
} else {
return true;
}
}
Q_ASSERT(p_source->hasText());
return false;
}
void VMdEditor::replaceTextWithLocalImages(QString &p_text)
{
QVector<VElementRegion> regs = VUtils::fetchImageRegionsUsingParser(p_text);
if (regs.isEmpty()) {
return;
}
// Sort it in ascending order.
std::sort(regs.begin(), regs.end());
QProgressDialog proDlg(tr("Fetching images to local..."),
tr("Abort"),
0,
regs.size(),
this);
proDlg.setWindowModality(Qt::WindowModal);
proDlg.setWindowTitle(tr("Fetching Images To Local"));
QRegExp regExp(VUtils::c_imageLinkRegExp);
for (int i = regs.size() - 1; i >= 0; --i) {
proDlg.setValue(regs.size() - 1 - i);
if (proDlg.wasCanceled()) {
break;
}
const VElementRegion &reg = regs[i];
QString linkText = p_text.mid(reg.m_startPos, reg.m_endPos - reg.m_startPos);
if (regExp.indexIn(linkText) == -1) {
continue;
}
QString imageTitle = regExp.cap(1).trimmed();
QString imageUrl = regExp.cap(2).trimmed();
proDlg.setLabelText(tr("Fetching image: %1").arg(imageUrl));
QString destImagePath, urlInLink;
// Only handle absolute file path or network path.
QString srcImagePath;
QFileInfo info(imageUrl);
// For network image.
QString suffix = info.suffix();
QScopedPointer<QTemporaryFile> tmpFile;
if (info.exists() && info.isAbsolute()) {
// Absolute local path.
srcImagePath = info.absoluteFilePath();
} else {
// Network path.
QByteArray data = VDownloader::downloadSync(QUrl(imageUrl));
if (!data.isEmpty()) {
QString xx = suffix.isEmpty() ? "XXXXXX" : "XXXXXX.";
tmpFile.reset(new QTemporaryFile(QDir::tempPath()
+ QDir::separator()
+ xx
+ suffix));
if (tmpFile->open() && tmpFile->write(data) > -1) {
srcImagePath = tmpFile->fileName();
}
// Need to close it explicitly to flush cache of small file.
tmpFile->close();
}
}
if (srcImagePath.isEmpty()) {
continue;
}
// Insert image without inserting text.
auto ops = static_cast<VMdEditOperations *>(m_editOps);
ops->insertImageFromPath(imageTitle,
m_file->fetchImageFolderPath(),
m_file->getImageFolderInLink(),
srcImagePath,
false,
destImagePath,
urlInLink);
if (urlInLink.isEmpty()) {
continue;
}
// Replace URL in link.
QString newLink = QString("![%1](%2%3%4)")
.arg(imageTitle)
.arg(urlInLink)
.arg(regExp.cap(3))
.arg(regExp.cap(6));
p_text.replace(reg.m_startPos,
reg.m_endPos - reg.m_startPos,
newLink);
qDebug() << "replace link" << linkText << "to" << newLink;
}
proDlg.setValue(regs.size());
}
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