FEAT(client,images): Add animated gif support

src/mumble/CustomElements.h

@@ -7,21 +7,75 @@
 #define MUMBLE_MUMBLE_CUSTOMELEMENTS_H_
 
 #include <QtCore/QObject>
+#include <QtGui/QMovie>
+#include <QtGui/QTextObjectInterface>
 #include <QtWidgets/QLabel>
 #include <QtWidgets/QTextBrowser>
 #include <QtWidgets/QTextEdit>
 
+Q_DECLARE_METATYPE(QMovie *)
+
 class LogTextBrowser : public QTextBrowser {
 private:
 	Q_OBJECT
 	Q_DISABLE_COPY(LogTextBrowser)
 
+protected:
+	static QWidget *widgetInFullScreen;
+	QString queuedNumericInput;
+	void mousePressEvent(QMouseEvent *) Q_DECL_OVERRIDE;
+	void wheelEvent(QWheelEvent *) Q_DECL_OVERRIDE;
+	void keyPressEvent(QKeyEvent *) Q_DECL_OVERRIDE;
+	void keyReleaseEvent(QKeyEvent *) Q_DECL_OVERRIDE;
+	QMimeData *createMimeDataFromSelection() const Q_DECL_OVERRIDE;
+
 public:
 	LogTextBrowser(QWidget *p = nullptr);
 
-	int getLogScroll();
-	void setLogScroll(int scroll_pos);
+	static void registerCustomTextObjects(QTextDocument &doc);
+	static void highlightSelectedObject(const QTextDocument &doc, QPainter &painter, const QRect &rect,
+										const QObject &propertyHolder);
+	static QRect calcRectScaledToScreen(const QSize &size);
+	static bool isWidgetInFullScreen();
+	static void toggleFullScreen(QWidget *widget = nullptr);
+
+	static bool mousePressCustomTextObjects(const QTextDocument &doc, const QMouseEvent &mouseEvt);
+	static bool scrollCustomTextObjects(const QTextDocument &doc, const QWheelEvent &wheelEvt);
+	static bool keyPressCustomTextObjects(const QTextDocument &doc, const QKeyEvent &keyEvt,
+										  bool isObjSelectionChanged);
+	static QString addedCustomTextObjectsToHtml(const QString &html, const QTextCursor &tc,
+												bool isLimitedToSelection = true);
+
+	static void clear(QTextDocument &doc, std::function< void() > baseClear = nullptr);
+	static int getScrollX(const QTextDocument &doc);
+	static int getScrollY(const QTextDocument &doc);
+	static QPoint getScrollPos(const QTextDocument &doc);
+	static QRect getDocumentViewRect(const QTextDocument &doc);
+	static void setScrollX(const QTextDocument &doc, int scrollPos);
+	static void setScrollY(const QTextDocument &doc, int scrollPos);
+	static void changeScrollX(const QTextDocument &doc, int change);
+	static void changeScrollY(const QTextDocument &doc, int change);
+	static bool isScrolledToBottom(const QTextDocument &doc);
+	static void scrollAreaIntoView(const QTextDocument &doc, const QRect &rect);
+	static QObject *customObjectAt(const QTextDocument &doc, const QPoint &pos);
+	static QObject *customObjectOfFormat(const QTextFormat &fmt, const QPoint &pos);
+	static void update(const QTextDocument &doc, const QRect &rect = QRect());
+	static void reflow(QTextDocument &doc);
+
+	void clear();
+	int getScrollX();
+	int getScrollY();
+	QPoint getScrollPos();
+	QRect getDocumentViewRect();
+	void setScrollX(int scrollPos);
+	void setScrollY(int scrollPos);
+	void changeScrollX(int change);
+	void changeScrollY(int change);
 	bool isScrolledToBottom();
+	void scrollAreaIntoView(const QRect &rect);
+	QObject *customObjectAt(const QPoint &pos);
+	void update(const QRect &rect = QRect());
+	void reflow();
 };
 
 class ChatbarTextEdit : public QTextEdit {
@@ -52,7 +106,7 @@ class ChatbarTextEdit : public QTextEdit {
 	bool canInsertFromMimeData(const QMimeData *source) const Q_DECL_OVERRIDE;
 	void insertFromMimeData(const QMimeData *source) Q_DECL_OVERRIDE;
 	bool sendImagesFromMimeData(const QMimeData *source);
-	bool emitPastedImage(QImage image);
+	bool emitPastedImage(const QImage &image, const QString &filePath = "", const QByteArray &imageBa = QByteArray());
 
 public:
 	void setDefaultText(const QString &, bool = false);
@@ -76,6 +130,122 @@ public slots:
 	ChatbarTextEdit(QWidget *p = nullptr);
 };
 
+class VideoUtils {
+public:
+	enum class VideoControl {
+		None,
+		View,
+		VideoBar,
+		PlayPause,
+		Cache,
+		Loop,
+		PreviousFrame,
+		NextFrame,
+		ResetSpeed,
+		DecreaseSpeed,
+		IncreaseSpeed,
+		FullScreen
+	};
+	static const int videoBarHeight           = 4;
+	static const int underVideoBarHeight      = 20;
+	static const int videoControlsHeight      = videoBarHeight + underVideoBarHeight;
+	static const int videoBarMinWidth         = 260;
+	static const int cacheOffsetX             = -180;
+	static const int loopModeOffsetX          = -140;
+	static const int frameTraversalOffsetX    = -100;
+	static const int speedOffsetX             = -70;
+	static const int fullScreenOffsetX        = -15;
+	static const int videoControlsRevertDelay = 1200;
+
+	static bool isInBoundsOnAxis(int posOnAxis, int start, int length);
+	static bool isInBounds(const QPoint &pos, const QRect &bounds);
+	static int calcPosOnAxisFromOffset(int offset, int start, int length);
+	static QRect calcVideoControlsRect(const QObject &propertyHolder);
+
+	static VideoControl videoControlAt(const QPoint &pos, const QRect &rect);
+	static double videoBarProportionAt(const QPoint &pos, const QRect &rect);
+	static void drawVideoControls(QPainter &painter, const QRect &rect, const QObject &propertyHolder,
+								  double opacity = 1);
+	static void drawCenteredPlayIcon(QPainter &painter, const QRect &rect);
+	static void addVideoControlsTransition(QObject &propertyHolder, QWidget &area, bool isIdleCursorHidden = true);
+	static void startOrHoldVideoControlsTransition(QObject &propertyHolder, const QPoint &hoveredPos = QPoint(),
+												   QWidget *cursorArea = nullptr);
+
+	static void updateVideoControls(const QObject &propertyHolder, QWidget *area = nullptr,
+									const QMargins &margins = QMargins());
+	static void updatePropertyRect(QObject &propertyHolder, const QRect &rect);
+	static QSizeF calcIntrinsicSize(const QSize &size, bool areVideoControlsShown);
+	static void setPropertyFullScreen(QObject &propertyHolder, bool isShown);
+	static void setAttributesWidthAndHeight(const QObject &propertyHolder, QSize &size);
+};
+
+class ImageAnimationTextObject : public QObject, public QTextObjectInterface {
+	Q_OBJECT
+	Q_INTERFACES(QTextObjectInterface)
+
+protected:
+	static QObject *createImageAnimation(bool &isAnimationCheckOnly, const QByteArray &animationBa,
+										 QTextDocument *parentDoc = nullptr);
+	QSizeF intrinsicSize(QTextDocument *doc, int charPos, const QTextFormat &fmt) Q_DECL_OVERRIDE;
+	void drawObject(QPainter *painterPtr, const QRectF &rectF, QTextDocument *doc, int charPos,
+					const QTextFormat &fmt) Q_DECL_OVERRIDE;
+
+public:
+	bool areVideoControlsShown = false;
+	ImageAnimationTextObject(QTextDocument &parentDoc);
+	static QObject *createImageAnimation(const QByteArray &animationBa, QTextDocument &parentDoc);
+	static bool testImageAnimation(const QByteArray &animationBa);
+
+	static bool mousePress(QMovie &animation, const QPoint &mouseDocPos, const Qt::MouseButton &button,
+						   bool areVideoControlsShown = false);
+	static bool scroll(QMovie &animation, const QPoint &mouseDocPos, bool isScrollingUp,
+					   bool areVideoControlsShown = false);
+	static bool keyPress(QMovie &animation, const Qt::Key &key, bool isObjectSelectionChanged = false);
+
+	enum class LoopMode { Unchanged, Loop, NoLoop };
+	static QString loopModeToString(LoopMode mode);
+
+	static int getTotalTime(const QObject &propertyHolder);
+	static int getCurrentTime(const QObject &propertyHolder, int frameIndex);
+	static void setFrame(QMovie &animation, int frameIndex);
+	static void setFrameByTime(QMovie &animation, int milliseconds);
+	static void setFrameByProportion(QMovie &animation, double proportion);
+	static void changeFrame(QMovie &animation, int amount);
+	static void changeFrameByTime(QMovie &animation, int milliseconds);
+	static void togglePause(QMovie &animation);
+	static void toggleCache(QMovie &animation);
+	static void toggleFullScreen(QMovie &animation);
+	static void escapeFullScreen();
+	static void stopPlayback(QMovie &animation);
+	static void resetPlayback(QMovie &animation);
+	static void setSpeed(QMovie &animation, int percentage);
+	static void resetSpeed(QMovie &animation);
+	static void invertSpeed(QMovie &animation);
+	static void changeSpeed(QMovie &animation, int percentageStep);
+	static void setLoopMode(QMovie &animation, LoopMode mode);
+	static void changeLoopMode(QMovie &animation, int steps);
+	static void toggleVideoControlsFullScreen(QObject &propertyHolder);
+
+	void toggleVideoControls();
+	void addVideoControlsSwitch(QMenu &menu);
+	bool mousePress(const QPoint &mouseDocPos, const Qt::MouseButton &button, QMovie &animation);
+	bool scroll(const QPoint &mouseDocPos, bool isScrollingUp, QMovie &animation);
+};
+
+class FullScreenImageAnimation : public QLabel {
+	Q_OBJECT
+
+protected:
+	void mousePressEvent(QMouseEvent *) Q_DECL_OVERRIDE;
+	void mouseMoveEvent(QMouseEvent *) Q_DECL_OVERRIDE;
+	void wheelEvent(QWheelEvent *) Q_DECL_OVERRIDE;
+	void keyPressEvent(QKeyEvent *) Q_DECL_OVERRIDE;
+	void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE;
+
+public:
+	FullScreenImageAnimation(QMovie &animation, QWidget *parentWidget = nullptr);
+};
+
 class DockTitleBar : public QLabel {
 private:
 	Q_OBJECT