From 30f73cb004772316f7174d5f196143faa4351259 Mon Sep 17 00:00:00 2001
From: Le Tan <tamlokveer@gmail.com>
Date: Thu, 14 Jul 2022 22:11:01 +0800
Subject: [PATCH] NavigtionMode: fix bug when input method is enabled

---
 libs/vtextedit                    |  2 +-
 src/utils/iconutils.cpp           | 33 +++++++++++++++++++++----------
 src/widgets/navigationmodemgr.cpp |  7 +++++++
 3 files changed, 31 insertions(+), 11 deletions(-)

diff --git a/libs/vtextedit b/libs/vtextedit
index a6a9a31c..5c52cfe2 160000
--- a/libs/vtextedit
+++ b/libs/vtextedit
@@ -1 +1 @@
-Subproject commit a6a9a31cf64b4a159d360f0ef6ed6cf296f8eca8
+Subproject commit 5c52cfe2b211b021773d9e3c9559e5358a312381
diff --git a/src/utils/iconutils.cpp b/src/utils/iconutils.cpp
index 95ef353a..5d3ed8dc 100644
--- a/src/utils/iconutils.cpp
+++ b/src/utils/iconutils.cpp
@@ -81,19 +81,32 @@ bool IconUtils::isMonochrome(const QString &p_iconContent)
     // Match color-hex codes.
     QRegExp monoRe("#([0-9a-fA-F]{6}|[0-9a-fA-F]{3})");
 
-    int i = 0;
-    QString cur, next = "";
-    while ((i = monoRe.indexIn(p_iconContent, i)) != -1) {
-        if (i != 0) {
-            next = cur;
-        }
-        cur = monoRe.cap(1);
-        if (next != "" && cur != next) {
-            return false;
+    QString lastColor = "";
+    int pos = 0;
+    while (pos < p_iconContent.size()) {
+        int idx = p_iconContent.indexOf(monoRe, pos);
+        if (idx == -1) {
+            break;
         }
 
-        i += monoRe.matchedLength();
+        auto curColor = monoRe.cap(1);
+        if (curColor.size() == 3) {
+            for (int i = curColor.size() - 1; i >= 0; --i) {
+                curColor.insert(i, curColor[i]);
+            }
+        }
+
+        if (lastColor != curColor) {
+            if (lastColor.isEmpty()) {
+                lastColor = curColor;
+            } else {
+                return false;
+            }
+        }
+
+        pos += monoRe.matchedLength();
     }
+
     return true;
 }
 
diff --git a/src/widgets/navigationmodemgr.cpp b/src/widgets/navigationmodemgr.cpp
index f6fc8f16..a4ec412c 100644
--- a/src/widgets/navigationmodemgr.cpp
+++ b/src/widgets/navigationmodemgr.cpp
@@ -9,6 +9,8 @@
 #include <core/configmgr.h>
 #include <core/coreconfig.h>
 #include <utils/widgetutils.h>
+#include <vtextedit/vtextedit.h>
+
 #include "navigationmode.h"
 
 using namespace vnotex;
@@ -73,6 +75,9 @@ void NavigationModeMgr::triggerNavigationMode()
 
     qApp->installEventFilter(this);
 
+    // Qt bug: the shortcut key sequence may be swallowed by input method first.
+    vte::VTextEdit::forceInputMethodDisabled(true);
+
     for (auto &target : m_targets) {
         target.m_available = true;
         target.m_target->showNavigation();
@@ -89,6 +94,8 @@ void NavigationModeMgr::exitNavigationMode()
     m_activated = false;
     qApp->removeEventFilter(this);
 
+    vte::VTextEdit::forceInputMethodDisabled(false);
+
     for (auto &target : m_targets) {
         target.m_available = true;
         target.m_target->hideNavigation();