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// Copyright (c) 2006-2008 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/bookmarks/bookmark_utils.h"
#include "chrome/browser/bookmarks/bookmark_drag_data.h"
#include "chrome/browser/bookmarks/bookmark_model.h"
#include "chrome/browser/browser.h"
#include "chrome/browser/browser_list.h"
#include "chrome/browser/page_navigator.h"
#include "chrome/browser/tab_contents.h"
#include "chrome/common/drag_drop_types.h"
#include "chrome/common/l10n_util.h"
#include "chrome/views/event.h"
#include "chromium_strings.h"
#include "generated_resources.h"
namespace {
// Number of bookmarks we'll open before prompting the user to see if they
// really want to open all.
const int kNumURLsBeforePrompting = 15;
// A PageNavigator implementation that creates a new Browser. This is used when
// opening a url and there is no Browser open. The Browser is created the first
// time the PageNavigator method is invoked.
class NewBrowserPageNavigator : public PageNavigator {
public:
explicit NewBrowserPageNavigator(Profile* profile)
: profile_(profile),
browser_(NULL) {}
virtual ~NewBrowserPageNavigator() {
if (browser_)
browser_->Show();
}
Browser* browser() const { return browser_; }
virtual void OpenURL(const GURL& url,
const GURL& referrer,
WindowOpenDisposition disposition,
PageTransition::Type transition) {
if (!browser_) {
Profile* profile = (disposition == OFF_THE_RECORD) ?
profile_->GetOffTheRecordProfile() : profile_;
browser_ = new Browser(gfx::Rect(), SW_SHOW, profile,
BrowserType::TABBED_BROWSER, std::wstring());
// Always open the first tab in the foreground.
disposition = NEW_FOREGROUND_TAB;
}
browser_->OpenURLFromTab(NULL, url, referrer, NEW_FOREGROUND_TAB, transition);
}
private:
Profile* profile_;
Browser* browser_;
DISALLOW_COPY_AND_ASSIGN(NewBrowserPageNavigator);
};
void CloneDragDataImpl(BookmarkModel* model,
const BookmarkDragData::Element& element,
BookmarkNode* parent,
int index_to_add_at) {
if (element.is_url) {
model->AddURL(parent, index_to_add_at, element.title, element.url);
} else {
BookmarkNode* new_folder = model->AddGroup(parent, index_to_add_at,
element.title);
for (int i = 0; i < static_cast<int>(element.children.size()); ++i)
CloneDragDataImpl(model, element.children[i], new_folder, i);
}
}
// Returns the number of descendants of node that are of type url.
int DescendantURLCount(BookmarkNode* node) {
int result = 0;
for (int i = 0; i < node->GetChildCount(); ++i) {
BookmarkNode* child = node->GetChild(i);
if (child->is_url())
result++;
else
result += DescendantURLCount(child);
}
return result;
}
// Implementation of OpenAll. Opens all nodes of type URL and recurses for
// groups. |navigator| is the PageNavigator used to open URLs. After the first
// url is opened |opened_url| is set to true and |navigator| is set to the
// PageNavigator of the last active tab. This is done to handle a window
// disposition of new window, in which case we want subsequent tabs to open in
// that window.
void OpenAllImpl(BookmarkNode* node,
WindowOpenDisposition initial_disposition,
PageNavigator** navigator,
bool* opened_url) {
if (node->is_url()) {
WindowOpenDisposition disposition;
if (*opened_url)
disposition = NEW_BACKGROUND_TAB;
else
disposition = initial_disposition;
(*navigator)->OpenURL(node->GetURL(), GURL(), disposition,
PageTransition::AUTO_BOOKMARK);
if (!*opened_url) {
*opened_url = true;
// We opened the first URL which may have opened a new window or clobbered
// the current page, reset the navigator just to be sure.
Browser* new_browser = BrowserList::GetLastActive();
if (new_browser) {
TabContents* current_tab = new_browser->GetSelectedTabContents();
DCHECK(new_browser && current_tab);
if (new_browser && current_tab)
*navigator = current_tab;
} // else, new_browser == NULL, which happens during testing.
}
} else {
// Group, recurse through children.
for (int i = 0; i < node->GetChildCount(); ++i) {
OpenAllImpl(node->GetChild(i), initial_disposition, navigator,
opened_url);
}
}
}
bool ShouldOpenAll(HWND parent, const std::vector<BookmarkNode*>& nodes) {
int descendant_count = 0;
for (size_t i = 0; i < nodes.size(); ++i)
descendant_count += DescendantURLCount(nodes[i]);
if (descendant_count < kNumURLsBeforePrompting)
return true;
std::wstring message =
l10n_util::GetStringF(IDS_BOOKMARK_BAR_SHOULD_OPEN_ALL,
IntToWString(descendant_count));
return MessageBox(parent, message.c_str(),
l10n_util::GetString(IDS_PRODUCT_NAME).c_str(),
MB_YESNO | MB_ICONWARNING | MB_TOPMOST) == IDYES;
}
} // namespace
namespace bookmark_utils {
int PreferredDropOperation(int source_operations, int operations) {
int common_ops = (source_operations & operations);
if (!common_ops)
return 0;
if (DragDropTypes::DRAG_COPY & common_ops)
return DragDropTypes::DRAG_COPY;
if (DragDropTypes::DRAG_LINK & common_ops)
return DragDropTypes::DRAG_LINK;
if (DragDropTypes::DRAG_MOVE & common_ops)
return DragDropTypes::DRAG_MOVE;
return DragDropTypes::DRAG_NONE;
}
bool IsValidDropLocation(Profile* profile,
const BookmarkDragData& data,
BookmarkNode* drop_parent,
int index) {
if (!drop_parent->is_folder()) {
NOTREACHED();
return false;
}
if (!data.is_valid())
return false;
if (data.IsFromProfile(profile)) {
std::vector<BookmarkNode*> nodes = data.GetNodes(profile);
for (size_t i = 0; i < nodes.size(); ++i) {
// Don't allow the drop if the user is attempting to drop on one of the
// nodes being dragged.
BookmarkNode* node = nodes[i];
int node_index = (drop_parent == node->GetParent()) ?
drop_parent->IndexOfChild(nodes[i]) : -1;
if (node_index != -1 && (index == node_index || index == node_index + 1))
return false;
// drop_parent can't accept a child that is an ancestor.
if (drop_parent->HasAncestor(node))
return false;
}
return true;
}
// From the same profile, always accept.
return true;
}
void CloneDragData(BookmarkModel* model,
const std::vector<BookmarkDragData::Element>& elements,
BookmarkNode* parent,
int index_to_add_at) {
if (!parent->is_folder() || !model) {
NOTREACHED();
return;
}
for (size_t i = 0; i < elements.size(); ++i)
CloneDragDataImpl(model, elements[i], parent, index_to_add_at + i);
}
void OpenAll(HWND parent,
Profile* profile,
PageNavigator* navigator,
const std::vector<BookmarkNode*>& nodes,
WindowOpenDisposition initial_disposition) {
if (!ShouldOpenAll(parent, nodes))
return;
NewBrowserPageNavigator navigator_impl(profile);
if (!navigator) {
Browser* browser =
BrowserList::FindBrowserWithType(profile, BrowserType::TABBED_BROWSER);
if (!browser || !browser->GetSelectedTabContents())
navigator = &navigator_impl;
else
navigator = browser->GetSelectedTabContents();
}
bool opened_url = false;
for (size_t i = 0; i < nodes.size(); ++i)
OpenAllImpl(nodes[i], initial_disposition, &navigator, &opened_url);
}
void OpenAll(HWND parent,
Profile* profile,
PageNavigator* navigator,
BookmarkNode* node,
WindowOpenDisposition initial_disposition) {
std::vector<BookmarkNode*> nodes;
nodes.push_back(node);
OpenAll(parent, profile, navigator, nodes, initial_disposition);
}
} // namespace bookmark_utils
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