example_base.cc revision 5e3f23d412006dc4db4e659864679f29341e113f
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/views/examples/example_base.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <stdarg.h> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/compiler_specific.h" 105e3f23d412006dc4db4e659864679f29341e113fTorne (Richard Coles)#include "base/strings/stringprintf.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/views/view.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace views { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace examples { 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Logs the specified string to the status area of the examples window. 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This function can only be called if there is a visible examples window. 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void LogStatus(const std::string& status); 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TODO(oshima): Check if this special container is still necessary. 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class ContainerView : public View { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit ContainerView(ExampleBase* base) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : example_view_created_(false), 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) example_base_(base) { 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Overridden from View: 32a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) virtual void ViewHierarchyChanged( 33a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) const ViewHierarchyChangedDetails& details) OVERRIDE { 34a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) View::ViewHierarchyChanged(details); 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We're not using child == this because a Widget may not be 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // available when this is added to the hierarchy. 37a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) if (details.is_add && GetWidget() && !example_view_created_) { 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) example_view_created_ = true; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) example_base_->CreateExampleView(this); 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // True if the example view has already been created, or false otherwise. 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool example_view_created_; 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExampleBase* example_base_; 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(ContainerView); 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ExampleBase::~ExampleBase() {} 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ExampleBase::ExampleBase(const char* title) : example_title_(title) { 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) container_ = new ContainerView(this); 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Prints a message in the status area, at the bottom of the window. 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ExampleBase::PrintStatus(const char* format, ...) { 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) va_list ap; 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) va_start(ap, format); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string msg; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::StringAppendV(&msg, format, ap); 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LogStatus(msg); 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace examples 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace views 70