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// Copyright (c) 2011 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/infobars/extension_infobar_gtk.h"
#include "chrome/browser/extensions/extension_context_menu_model.h"
#include "chrome/browser/extensions/extension_host.h"
#include "chrome/browser/platform_util.h"
#include "chrome/browser/ui/gtk/browser_window_gtk.h"
#include "chrome/browser/ui/gtk/custom_button.h"
#include "chrome/browser/ui/gtk/gtk_chrome_button.h"
#include "chrome/browser/ui/gtk/gtk_util.h"
#include "chrome/browser/ui/gtk/infobars/infobar_container_gtk.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/extensions/extension_icon_set.h"
#include "chrome/common/extensions/extension_resource.h"
#include "content/browser/renderer_host/render_view_host.h"
#include "content/browser/renderer_host/render_widget_host_view.h"
#include "grit/theme_resources.h"
#include "ui/base/gtk/gtk_signal_registrar.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/canvas_skia.h"
#include "ui/gfx/gtk_util.h"
#include "ui/gfx/image/image.h"
ExtensionInfoBarGtk::ExtensionInfoBarGtk(InfoBarTabHelper* owner,
ExtensionInfoBarDelegate* delegate)
: InfoBarGtk(owner, delegate),
tracker_(this),
delegate_(delegate),
view_(NULL) {
// Always render the close button as if we were doing chrome style widget
// rendering. For extension infobars, we force chrome style rendering because
// extension authors are going to expect to match the declared gradient in
// extensions_infobar.css, and the close button provided by some GTK+ themes
// won't look good on this background.
close_button_->ForceChromeTheme();
int height = delegate->height();
SetBarTargetHeight((height > 0) ? (height + kSeparatorLineHeight) : 0);
BuildWidgets();
}
ExtensionInfoBarGtk::~ExtensionInfoBarGtk() {}
void ExtensionInfoBarGtk::PlatformSpecificHide(bool animate) {
// This view is not owned by us; we can't unparent it because we aren't the
// owning container.
gtk_container_remove(GTK_CONTAINER(alignment_), view_->native_view());
}
void ExtensionInfoBarGtk::GetTopColor(InfoBarDelegate::Type type,
double* r, double* g, double* b) {
// Extension infobars are always drawn with chrome-theme colors.
*r = *g = *b = 233.0 / 255.0;
}
void ExtensionInfoBarGtk::GetBottomColor(InfoBarDelegate::Type type,
double* r, double* g, double* b) {
*r = *g = *b = 218.0 / 255.0;
}
void ExtensionInfoBarGtk::OnImageLoaded(
SkBitmap* image, const ExtensionResource& resource, int index) {
if (!delegate_)
return; // The delegate can go away while we asynchronously load images.
// TODO(erg): IDR_EXTENSIONS_SECTION should have an IDR_INFOBAR_EXTENSIONS
// icon of the correct size with real subpixel shading and such.
SkBitmap* icon = image;
ResourceBundle& rb = ResourceBundle::GetSharedInstance();
if (!image || image->empty())
icon = rb.GetBitmapNamed(IDR_EXTENSIONS_SECTION);
SkBitmap* drop_image = rb.GetBitmapNamed(IDR_APP_DROPARROW);
int image_size = Extension::EXTENSION_ICON_BITTY;
// The margin between the extension icon and the drop-down arrow bitmap.
static const int kDropArrowLeftMargin = 3;
scoped_ptr<gfx::CanvasSkia> canvas(new gfx::CanvasSkia(
image_size + kDropArrowLeftMargin + drop_image->width(),
image_size,
false));
canvas->DrawBitmapInt(*icon, 0, 0, icon->width(), icon->height(), 0, 0,
image_size, image_size, false);
canvas->DrawBitmapInt(*drop_image, image_size + kDropArrowLeftMargin,
image_size / 2);
SkBitmap bitmap = canvas->ExtractBitmap();
GdkPixbuf* pixbuf = gfx::GdkPixbufFromSkBitmap(&bitmap);
gtk_image_set_from_pixbuf(GTK_IMAGE(icon_), pixbuf);
g_object_unref(pixbuf);
}
void ExtensionInfoBarGtk::BuildWidgets() {
button_ = gtk_chrome_button_new();
gtk_chrome_button_set_use_gtk_rendering(GTK_CHROME_BUTTON(button_), FALSE);
g_object_set_data(G_OBJECT(button_), "left-align-popup",
reinterpret_cast<void*>(true));
icon_ = gtk_image_new();
gtk_misc_set_alignment(GTK_MISC(icon_), 0.5, 0.5);
gtk_button_set_image(GTK_BUTTON(button_), icon_);
gtk_util::CenterWidgetInHBox(hbox_, button_, false, 0);
// Start loading the image for the menu button.
const Extension* extension = delegate_->extension_host()->extension();
ExtensionResource icon_resource = extension->GetIconResource(
Extension::EXTENSION_ICON_BITTY, ExtensionIconSet::MATCH_EXACTLY);
if (!icon_resource.relative_path().empty()) {
// Create a tracker to load the image. It will report back on OnImageLoaded.
tracker_.LoadImage(extension, icon_resource,
gfx::Size(Extension::EXTENSION_ICON_BITTY,
Extension::EXTENSION_ICON_BITTY),
ImageLoadingTracker::DONT_CACHE);
} else {
OnImageLoaded(NULL, icon_resource, 0);
}
// Pad the bottom of the infobar by one pixel for the border.
alignment_ = gtk_alignment_new(0.0, 0.0, 1.0, 1.0);
gtk_alignment_set_padding(GTK_ALIGNMENT(alignment_), 0, 1, 0, 0);
gtk_box_pack_start(GTK_BOX(hbox_), alignment_, TRUE, TRUE, 0);
ExtensionHost* extension_host = delegate_->extension_host();
view_ = extension_host->view();
if (gtk_widget_get_parent(view_->native_view())) {
gtk_widget_reparent(view_->native_view(), alignment_);
} else {
gtk_container_add(GTK_CONTAINER(alignment_), view_->native_view());
}
Signals()->Connect(button_, "button-press-event",
G_CALLBACK(&OnButtonPressThunk), this);
Signals()->Connect(view_->native_view(), "expose-event",
G_CALLBACK(&OnExposeThunk), this);
Signals()->Connect(view_->native_view(), "size_allocate",
G_CALLBACK(&OnSizeAllocateThunk), this);
}
void ExtensionInfoBarGtk::StoppedShowing() {
gtk_chrome_button_unset_paint_state(GTK_CHROME_BUTTON(button_));
}
Browser* ExtensionInfoBarGtk::GetBrowser() {
// Get the Browser object this infobar is attached to.
GtkWindow* parent = platform_util::GetTopLevel(icon_);
if (!parent)
return NULL;
return BrowserWindowGtk::GetBrowserWindowForNativeWindow(parent)->browser();
}
ui::MenuModel* ExtensionInfoBarGtk::BuildMenuModel() {
const Extension* extension = delegate_->extension();
if (!extension->ShowConfigureContextMenus())
return NULL;
Browser* browser = GetBrowser();
if (!browser)
return NULL;
return new ExtensionContextMenuModel(extension, browser, NULL);
}
void ExtensionInfoBarGtk::OnSizeAllocate(GtkWidget* widget,
GtkAllocation* allocation) {
gfx::Size new_size(allocation->width, allocation->height);
delegate_->extension_host()->view()->render_view_host()->view()
->SetSize(new_size);
}
gboolean ExtensionInfoBarGtk::OnButtonPress(GtkWidget* widget,
GdkEventButton* event) {
if (event->button != 1)
return FALSE;
ui::MenuModel* model = BuildMenuModel();
if (!model)
return FALSE;
gtk_chrome_button_set_paint_state(GTK_CHROME_BUTTON(widget),
GTK_STATE_ACTIVE);
ShowMenuWithModel(widget, this, model);
return TRUE;
}
gboolean ExtensionInfoBarGtk::OnExpose(GtkWidget* sender,
GdkEventExpose* event) {
// We also need to draw our infobar arrows over the renderer.
static_cast<InfoBarContainerGtk*>(container())->
PaintInfobarBitsOn(sender, event, this);
return FALSE;
}
InfoBar* ExtensionInfoBarDelegate::CreateInfoBar(InfoBarTabHelper* owner) {
return new ExtensionInfoBarGtk(owner, this);
}
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