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// Copyright (c) 2010 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/input_window_dialog.h"
#include "base/compiler_specific.h"
#include "base/message_loop.h"
#include "base/task.h"
#include "views/grid_layout.h"
#include "views/controls/label.h"
#include "views/controls/textfield/textfield.h"
#include "views/standard_layout.h"
#include "views/window/dialog_delegate.h"
#include "views/window/window.h"
#include "grit/generated_resources.h"
// Width to make the text field, in pixels.
static const int kTextfieldWidth = 200;
class ContentView;
// The Windows implementation of the cross platform input dialog interface.
class WinInputWindowDialog : public InputWindowDialog {
public:
WinInputWindowDialog(HWND parent,
const std::wstring& window_title,
const std::wstring& label,
const std::wstring& contents,
Delegate* delegate);
virtual ~WinInputWindowDialog();
virtual void Show();
virtual void Close();
const std::wstring& window_title() const { return window_title_; }
const std::wstring& label() const { return label_; }
const std::wstring& contents() const { return contents_; }
InputWindowDialog::Delegate* delegate() { return delegate_.get(); }
private:
// Our chrome views window.
views::Window* window_;
// Strings to feed to the on screen window.
std::wstring window_title_;
std::wstring label_;
std::wstring contents_;
// Our delegate. Consumes the window's output.
scoped_ptr<InputWindowDialog::Delegate> delegate_;
};
// ContentView, as the name implies, is the content view for the InputWindow.
// It registers accelerators that accept/cancel the input.
class ContentView : public views::View,
public views::DialogDelegate,
public views::Textfield::Controller {
public:
explicit ContentView(WinInputWindowDialog* delegate)
: delegate_(delegate),
ALLOW_THIS_IN_INITIALIZER_LIST(focus_grabber_factory_(this)) {
DCHECK(delegate_);
}
// views::DialogDelegate overrides:
virtual bool IsDialogButtonEnabled(
MessageBoxFlags::DialogButton button) const;
virtual bool Accept();
virtual bool Cancel();
virtual void DeleteDelegate();
virtual std::wstring GetWindowTitle() const;
virtual bool IsModal() const { return true; }
virtual views::View* GetContentsView();
// views::Textfield::Controller overrides:
virtual void ContentsChanged(views::Textfield* sender,
const std::wstring& new_contents);
virtual bool HandleKeystroke(views::Textfield*,
const views::Textfield::Keystroke&) {
return false;
}
protected:
// views::View overrides:
virtual void ViewHierarchyChanged(bool is_add, views::View* parent,
views::View* child);
private:
// Set up dialog controls and layout.
void InitControlLayout();
// Sets focus to the first focusable element within the dialog.
void FocusFirstFocusableControl();
// The Textfield that the user can type into.
views::Textfield* text_field_;
// The delegate that the ContentView uses to communicate changes to the
// caller.
WinInputWindowDialog* delegate_;
// Helps us set focus to the first Textfield in the window.
ScopedRunnableMethodFactory<ContentView> focus_grabber_factory_;
DISALLOW_COPY_AND_ASSIGN(ContentView);
};
///////////////////////////////////////////////////////////////////////////////
// ContentView, views::DialogDelegate implementation:
bool ContentView::IsDialogButtonEnabled(
MessageBoxFlags::DialogButton button) const {
if (button == MessageBoxFlags::DIALOGBUTTON_OK &&
!delegate_->delegate()->IsValid(text_field_->text())) {
return false;
}
return true;
}
bool ContentView::Accept() {
delegate_->delegate()->InputAccepted(text_field_->text());
return true;
}
bool ContentView::Cancel() {
delegate_->delegate()->InputCanceled();
return true;
}
void ContentView::DeleteDelegate() {
delete delegate_;
}
std::wstring ContentView::GetWindowTitle() const {
return delegate_->window_title();
}
views::View* ContentView::GetContentsView() {
return this;
}
///////////////////////////////////////////////////////////////////////////////
// ContentView, views::Textfield::Controller implementation:
void ContentView::ContentsChanged(views::Textfield* sender,
const std::wstring& new_contents) {
GetDialogClientView()->UpdateDialogButtons();
}
///////////////////////////////////////////////////////////////////////////////
// ContentView, protected:
void ContentView::ViewHierarchyChanged(bool is_add,
views::View* parent,
views::View* child) {
if (is_add && child == this)
InitControlLayout();
}
///////////////////////////////////////////////////////////////////////////////
// ContentView, private:
void ContentView::InitControlLayout() {
text_field_ = new views::Textfield;
text_field_->SetText(delegate_->contents());
text_field_->SetController(this);
using views::ColumnSet;
using views::GridLayout;
// TODO(sky): Vertical alignment should be baseline.
GridLayout* layout = CreatePanelGridLayout(this);
SetLayoutManager(layout);
ColumnSet* c1 = layout->AddColumnSet(0);
c1->AddColumn(GridLayout::CENTER, GridLayout::CENTER, 0,
GridLayout::USE_PREF, 0, 0);
c1->AddPaddingColumn(0, kRelatedControlHorizontalSpacing);
c1->AddColumn(GridLayout::FILL, GridLayout::CENTER, 1,
GridLayout::USE_PREF, kTextfieldWidth, kTextfieldWidth);
layout->StartRow(0, 0);
views::Label* label = new views::Label(delegate_->label());
layout->AddView(label);
layout->AddView(text_field_);
MessageLoop::current()->PostTask(FROM_HERE,
focus_grabber_factory_.NewRunnableMethod(
&ContentView::FocusFirstFocusableControl));
}
void ContentView::FocusFirstFocusableControl() {
text_field_->SelectAll();
text_field_->RequestFocus();
}
WinInputWindowDialog::WinInputWindowDialog(HWND parent,
const std::wstring& window_title,
const std::wstring& label,
const std::wstring& contents,
Delegate* delegate)
: window_title_(window_title),
label_(label),
contents_(contents),
delegate_(delegate) {
window_ = views::Window::CreateChromeWindow(parent, gfx::Rect(),
new ContentView(this));
window_->GetClientView()->AsDialogClientView()->UpdateDialogButtons();
}
WinInputWindowDialog::~WinInputWindowDialog() {
}
void WinInputWindowDialog::Show() {
window_->Show();
}
void WinInputWindowDialog::Close() {
window_->Close();
}
// static
InputWindowDialog* InputWindowDialog::Create(HWND parent,
const std::wstring& window_title,
const std::wstring& label,
const std::wstring& contents,
Delegate* delegate) {
return new WinInputWindowDialog(parent,
window_title,
label,
contents,
delegate);
}
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