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// Copyright (c) 2009 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/gtk/bookmark_utils_gtk.h"
#include "app/resource_bundle.h"
#include "base/gfx/gtk_util.h"
#include "base/pickle.h"
#include "base/string_util.h"
#include "chrome/browser/bookmarks/bookmark_drag_data.h"
#include "chrome/browser/bookmarks/bookmark_model.h"
#include "chrome/browser/gtk/gtk_chrome_button.h"
#include "chrome/browser/gtk/gtk_dnd_util.h"
#include "chrome/browser/profile.h"
#include "grit/app_resources.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
namespace {
// Used in gtk_selection_data_set(). (I assume from this parameter that gtk has
// to some really exotic hardware...)
const int kBitsInAByte = 8;
// Maximum number of characters on a bookmark button.
const size_t kMaxCharsOnAButton = 15;
// Only used for the background of the drag widget.
const GdkColor kBackgroundColor = GDK_COLOR_RGB(0xe6, 0xed, 0xf4);
// Color of the button text, taken from TextButtonView.
const GdkColor kEnabledColor = GDK_COLOR_RGB(6, 45, 117);
const GdkColor kDisabledColor = GDK_COLOR_RGB(161, 161, 146);
// TextButtonView uses 255, 255, 255 with opacity of 200. We don't support
// transparent text though, so just use a slightly lighter version of
// kEnabledColor.
const GdkColor kHighlightColor = GDK_COLOR_RGB(56, 95, 167);
std::string DoubleUnderscores(const std::string& text) {
std::string ret;
ret.reserve(text.length() * 2);
for (size_t i = 0; i < text.length(); ++i) {
if ('_' == text[i]) {
ret.push_back('_');
ret.push_back('_');
} else {
ret.push_back(text[i]);
}
}
return ret;
}
// Recursively search for label among the children of |widget|.
void SearchForLabel(GtkWidget* widget, gpointer data) {
if (GTK_IS_LABEL(widget)) {
*reinterpret_cast<GtkWidget**>(data) = widget;
} else if (GTK_IS_CONTAINER(widget)) {
gtk_container_foreach(GTK_CONTAINER(widget), SearchForLabel, data);
}
}
void* AsVoid(const BookmarkNode* node) {
return const_cast<BookmarkNode*>(node);
}
} // namespace
namespace bookmark_utils {
const char kBookmarkNode[] = "bookmark-node";
GdkPixbuf* GetFolderIcon() {
ResourceBundle& rb = ResourceBundle::GetSharedInstance();
static GdkPixbuf* default_folder_icon = rb.GetPixbufNamed(
IDR_BOOKMARK_BAR_FOLDER);
return default_folder_icon;
}
GdkPixbuf* GetDefaultFavicon() {
ResourceBundle& rb = ResourceBundle::GetSharedInstance();
static GdkPixbuf* default_bookmark_icon = rb.GetPixbufNamed(
IDR_DEFAULT_FAVICON);
return default_bookmark_icon;
}
GdkPixbuf* GetPixbufForNode(const BookmarkNode* node, BookmarkModel* model) {
GdkPixbuf* pixbuf;
if (node->is_url()) {
if (model->GetFavIcon(node).width() != 0) {
pixbuf = gfx::GdkPixbufFromSkBitmap(&model->GetFavIcon(node));
} else {
pixbuf = GetDefaultFavicon();
g_object_ref(pixbuf);
}
} else {
pixbuf = GetFolderIcon();
g_object_ref(pixbuf);
}
return pixbuf;
}
GtkWidget* GetDragRepresentation(const BookmarkNode* node,
BookmarkModel* model) {
// Build a windowed representation for our button.
GtkWidget* window = gtk_window_new(GTK_WINDOW_POPUP);
gtk_widget_modify_bg(window, GTK_STATE_NORMAL, &kBackgroundColor);
gtk_widget_realize(window);
GtkWidget* frame = gtk_frame_new(NULL);
gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_OUT);
gtk_container_add(GTK_CONTAINER(window), frame);
gtk_widget_show(frame);
GtkWidget* floating_button = gtk_chrome_button_new();
bookmark_utils::ConfigureButtonForNode(node, model, floating_button);
gtk_container_add(GTK_CONTAINER(frame), floating_button);
gtk_widget_show(floating_button);
return window;
}
void ConfigureButtonForNode(const BookmarkNode* node, BookmarkModel* model,
GtkWidget* button) {
std::string tooltip = BuildTooltipFor(node);
if (!tooltip.empty())
gtk_widget_set_tooltip_text(button, tooltip.c_str());
GdkPixbuf* pixbuf = bookmark_utils::GetPixbufForNode(node, model);
gtk_button_set_image(GTK_BUTTON(button), gtk_image_new_from_pixbuf(pixbuf));
g_object_unref(pixbuf);
// TODO(erg): Consider a soft maximum instead of this hard 15.
std::wstring title = node->GetTitle();
// Don't treat underscores as mnemonics.
// O, that we could just use gtk_button_set_use_underline()!
// See http://bugzilla.gnome.org/show_bug.cgi?id=586330
std::string text = DoubleUnderscores(WideToUTF8(title));
gtk_button_set_label(GTK_BUTTON(button), text.c_str());
GtkWidget* label = NULL;
gtk_container_foreach(GTK_CONTAINER(button), SearchForLabel, &label);
if (label) {
gtk_label_set_max_width_chars(GTK_LABEL(label), kMaxCharsOnAButton);
gtk_label_set_ellipsize(GTK_LABEL(label), PANGO_ELLIPSIZE_END);
}
SetButtonTextColors(button);
g_object_set_data(G_OBJECT(button), bookmark_utils::kBookmarkNode,
AsVoid(node));
}
std::string BuildTooltipFor(const BookmarkNode* node) {
// TODO(erg): Actually build the tooltip. For now, we punt and just return
// the URL.
return node->GetURL().possibly_invalid_spec();
}
const BookmarkNode* BookmarkNodeForWidget(GtkWidget* widget) {
return reinterpret_cast<const BookmarkNode*>(
g_object_get_data(G_OBJECT(widget), bookmark_utils::kBookmarkNode));
}
void SetButtonTextColors(GtkWidget* button) {
GtkWidget* label = NULL;
gtk_container_foreach(GTK_CONTAINER(button), SearchForLabel, &label);
if (label) {
gtk_widget_modify_fg(label, GTK_STATE_NORMAL, &kEnabledColor);
gtk_widget_modify_fg(label, GTK_STATE_ACTIVE, &kEnabledColor);
gtk_widget_modify_fg(label, GTK_STATE_PRELIGHT, &kHighlightColor);
gtk_widget_modify_fg(label, GTK_STATE_INSENSITIVE, &kDisabledColor);
}
}
// DnD-related -----------------------------------------------------------------
void WriteBookmarkToSelection(const BookmarkNode* node,
GtkSelectionData* selection_data,
guint target_type,
Profile* profile) {
DCHECK(node);
std::vector<const BookmarkNode*> nodes;
nodes.push_back(node);
WriteBookmarksToSelection(nodes, selection_data, target_type, profile);
}
void WriteBookmarksToSelection(const std::vector<const BookmarkNode*>& nodes,
GtkSelectionData* selection_data,
guint target_type,
Profile* profile) {
switch (target_type) {
case GtkDndUtil::X_CHROME_BOOKMARK_ITEM: {
BookmarkDragData data(nodes);
Pickle pickle;
data.WriteToPickle(profile, &pickle);
gtk_selection_data_set(selection_data, selection_data->target,
kBitsInAByte,
static_cast<const guchar*>(pickle.data()),
pickle.size());
break;
}
default: {
DLOG(ERROR) << "Unsupported drag get type!";
}
}
}
std::vector<const BookmarkNode*> GetNodesFromSelection(
GdkDragContext* context,
GtkSelectionData* selection_data,
guint target_type,
Profile* profile,
gboolean* delete_selection_data,
gboolean* dnd_success) {
*delete_selection_data = FALSE;
*dnd_success = FALSE;
if ((selection_data != NULL) && (selection_data->length >= 0)) {
if (context->action == GDK_ACTION_MOVE) {
*delete_selection_data = TRUE;
}
switch (target_type) {
case GtkDndUtil::X_CHROME_BOOKMARK_ITEM: {
*dnd_success = TRUE;
Pickle pickle(reinterpret_cast<char*>(selection_data->data),
selection_data->length);
BookmarkDragData drag_data;
drag_data.ReadFromPickle(&pickle);
return drag_data.GetNodes(profile);
}
default: {
DLOG(ERROR) << "Unsupported drag received type: " << target_type;
}
}
}
return std::vector<const BookmarkNode*>();
}
} // namespace bookmark_utils
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