Delete the GTK+ port of Chrome.

chrome/browser/ui/gtk/gtk_chrome_button.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/ui/gtk/gtk_chrome_button.h"
-
-#include "base/basictypes.h"
-#include "chrome/browser/ui/gtk/nine_box.h"
-#include "grit/ui_resources.h"
-#include "ui/gfx/gtk_util.h"
-
-namespace {
-
-// The theme graphics for when the mouse is over the button.
-NineBox* g_nine_box_prelight;
-// The theme graphics for when the button is clicked.
-NineBox* g_nine_box_active;
-
-}  // namespace
-
-G_BEGIN_DECLS
-
-#define GTK_CHROME_BUTTON_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o),\
-                                          GTK_TYPE_CHROME_BUTTON,\
-                                          GtkChromeButtonPrivate))
-typedef struct _GtkChromeButtonPrivate GtkChromeButtonPrivate;
-
-struct _GtkChromeButtonPrivate {
-  int paint_state;
-
-  // If true, we use images provided by the theme instead of GTK's default
-  // button rendering.
-  gboolean use_gtk_rendering;
-
-  gdouble hover_state;
-};
-
-G_DEFINE_TYPE(GtkChromeButton, gtk_chrome_button, GTK_TYPE_BUTTON)
-static gboolean gtk_chrome_button_expose(GtkWidget* widget,
-                                         GdkEventExpose* event);
-
-static void gtk_chrome_button_class_init(GtkChromeButtonClass* button_class) {
-  gtk_rc_parse_string(
-      "style \"chrome-button\" {"
-      "  xthickness = 2 "
-      "  GtkButton::child-displacement-x = 0"
-      "  GtkButton::child-displacement-y = 0"
-      "  GtkButton::inner-border = { 0, 0, 0, 0 }"
-      "}"
-      "widget_class \"*.<GtkChromeButton>\" style \"chrome-button\"");
-
-  GtkWidgetClass* widget_class =
-      reinterpret_cast<GtkWidgetClass*>(button_class);
-  widget_class->expose_event = gtk_chrome_button_expose;
-
-  g_nine_box_prelight = new NineBox(
-      IDR_TEXTBUTTON_HOVER_TOP_LEFT,
-      IDR_TEXTBUTTON_HOVER_TOP,
-      IDR_TEXTBUTTON_HOVER_TOP_RIGHT,
-      IDR_TEXTBUTTON_HOVER_LEFT,
-      IDR_TEXTBUTTON_HOVER_CENTER,
-      IDR_TEXTBUTTON_HOVER_RIGHT,
-      IDR_TEXTBUTTON_HOVER_BOTTOM_LEFT,
-      IDR_TEXTBUTTON_HOVER_BOTTOM,
-      IDR_TEXTBUTTON_HOVER_BOTTOM_RIGHT);
-
-  g_nine_box_active = new NineBox(
-      IDR_TEXTBUTTON_PRESSED_TOP_LEFT,
-      IDR_TEXTBUTTON_PRESSED_TOP,
-      IDR_TEXTBUTTON_PRESSED_TOP_RIGHT,
-      IDR_TEXTBUTTON_PRESSED_LEFT,
-      IDR_TEXTBUTTON_PRESSED_CENTER,
-      IDR_TEXTBUTTON_PRESSED_RIGHT,
-      IDR_TEXTBUTTON_PRESSED_BOTTOM_LEFT,
-      IDR_TEXTBUTTON_PRESSED_BOTTOM,
-      IDR_TEXTBUTTON_PRESSED_BOTTOM_RIGHT);
-
-  GObjectClass* gobject_class = G_OBJECT_CLASS(button_class);
-  g_type_class_add_private(gobject_class, sizeof(GtkChromeButtonPrivate));
-}
-
-static void gtk_chrome_button_init(GtkChromeButton* button) {
-  GtkChromeButtonPrivate* priv = GTK_CHROME_BUTTON_GET_PRIVATE(button);
-  priv->paint_state = -1;
-  priv->use_gtk_rendering = FALSE;
-  priv->hover_state = -1.0;
-
-  gtk_widget_set_can_focus(GTK_WIDGET(button), FALSE);
-}
-
-static gboolean gtk_chrome_button_expose(GtkWidget* widget,
-                                         GdkEventExpose* event) {
-  GtkChromeButtonPrivate *priv = GTK_CHROME_BUTTON_GET_PRIVATE(widget);
-  int paint_state = priv->paint_state < 0 ?
-                    gtk_widget_get_state(widget) : priv->paint_state;
-
-  if (priv->use_gtk_rendering) {
-    // We have the superclass handle this expose when we aren't using custom
-    // rendering AND we're in either the prelight or active state so that we
-    // get the button border for the current GTK theme drawn.
-    if (paint_state == GTK_STATE_PRELIGHT || paint_state == GTK_STATE_ACTIVE) {
-      // Set the state of button->depressed so we paint pressed even if the
-      // actual state of the button is something else.
-      GTK_BUTTON(widget)->depressed = (paint_state == GTK_STATE_ACTIVE);
-      return GTK_WIDGET_CLASS(gtk_chrome_button_parent_class)->expose_event
-          (widget, event);
-    }
-  } else {
-    double effective_hover_state = paint_state == GTK_STATE_PRELIGHT ?
-                                   1.0 : 0.0;
-    // |paint_state| overrides |hover_state|.
-    if (priv->hover_state >= 0.0 && priv->paint_state < 0)
-      effective_hover_state = priv->hover_state;
-
-    if (paint_state == GTK_STATE_ACTIVE) {
-      g_nine_box_active->RenderToWidget(widget);
-    } else {
-      g_nine_box_prelight->RenderToWidgetWithOpacity(widget,
-                                                     effective_hover_state);
-    }
-  }
-
-  // If we have a child widget, draw it.
-  if (gtk_bin_get_child(GTK_BIN(widget))) {
-    gtk_container_propagate_expose(GTK_CONTAINER(widget),
-                                   gtk_bin_get_child(GTK_BIN(widget)),
-                                   event);
-  }
-
-  return FALSE;
-}
-
-GtkWidget* gtk_chrome_button_new(void) {
-  return GTK_WIDGET(g_object_new(GTK_TYPE_CHROME_BUTTON, NULL));
-}
-
-void gtk_chrome_button_set_paint_state(GtkChromeButton* button,
-                                       GtkStateType state) {
-  g_return_if_fail(GTK_IS_CHROME_BUTTON(button));
-
-  GtkChromeButtonPrivate *priv = GTK_CHROME_BUTTON_GET_PRIVATE(button);
-  priv->paint_state = state;
-
-  gtk_widget_queue_draw(GTK_WIDGET(button));
-}
-
-void gtk_chrome_button_unset_paint_state(GtkChromeButton* button) {
-  g_return_if_fail(GTK_IS_CHROME_BUTTON(button));
-
-  GtkChromeButtonPrivate *priv = GTK_CHROME_BUTTON_GET_PRIVATE(button);
-  priv->paint_state = -1;
-
-  gtk_widget_queue_draw(GTK_WIDGET(button));
-}
-
-void gtk_chrome_button_set_use_gtk_rendering(GtkChromeButton* button,
-                                             gboolean value) {
-  g_return_if_fail(GTK_IS_CHROME_BUTTON(button));
-  GtkChromeButtonPrivate *priv = GTK_CHROME_BUTTON_GET_PRIVATE(button);
-  priv->use_gtk_rendering = value;
-}
-
-void gtk_chrome_button_set_hover_state(GtkChromeButton* button,
-                                       gdouble state) {
-  GtkChromeButtonPrivate* priv = GTK_CHROME_BUTTON_GET_PRIVATE(button);
-  if (state >= 0.0 && state <= 1.0)
-    priv->hover_state = state;
-  else
-    priv->hover_state = -1.0;
-  gtk_widget_queue_draw(GTK_WIDGET(button));
-}
-
-G_END_DECLS