diff options
Diffstat (limited to 'Tizen.WebView/Tizen.WebView/WebView.cs')
| -rw-r--r-- | Tizen.WebView/Tizen.WebView/WebView.cs | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/Tizen.WebView/Tizen.WebView/WebView.cs b/Tizen.WebView/Tizen.WebView/WebView.cs new file mode 100644 index 0000000..6b9e751 --- /dev/null +++ b/Tizen.WebView/Tizen.WebView/WebView.cs @@ -0,0 +1,342 @@ +/*
+ * Copyright (c) 2017 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the License);
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using ElmSharp;
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+
+namespace Tizen.WebView
+{
+ /// <summary>
+ /// A view used to render web contents.
+ /// </summary>
+ public class WebView: EvasObject
+ {
+ private static IDictionary<string, JavaScriptMessageHandler> _javaScriptMessageHandlerMap = new Dictionary<string, JavaScriptMessageHandler>();
+
+ private IntPtr _handle;
+ private IntPtr _realHandle;
+ private Context _context;
+ private Settings _settings;
+
+ // focus dummy
+ private SmartEvent _focusIn;
+ private SmartEvent _focusOut;
+
+ // Smart events
+ private SmartEvent _loadStarted;
+ private SmartEvent _loadFinished;
+ private SmartEvent<SmartCallbackLoadErrorArgs> _loadError;
+ private SmartEvent<SmartCallbackArgs> _titleChanged;
+ private SmartEvent<SmartCallbackArgs> _urlChanged;
+
+
+
+ /// <summary>
+ /// Event that occurs when load started.
+ /// </summary>
+ public event EventHandler LoadStarted;
+
+ /// <summary>
+ /// Event that occurs when load finished.
+ /// </summary>
+ public event EventHandler LoadFinished;
+
+ /// <summary>
+ /// Event that occurs when load error.
+ /// </summary>
+ public event EventHandler<SmartCallbackLoadErrorArgs> LoadError;
+
+ /// <summary>
+ /// Event that occurs when title of main frame was changed.
+ /// </summary>
+ public event EventHandler<SmartCallbackArgs> TitleChanged;
+
+ /// <summary>
+ /// Event that occurs when URL of main frame was changed.
+ /// </summary>
+ public event EventHandler<SmartCallbackArgs> UrlChanged;
+
+ /// <summary>
+ /// Current URL of the main frame.
+ /// </summary>
+ public string Url
+ {
+ get
+ {
+ return Interop.ChromiumEwk.ewk_view_url_get(_realHandle);
+ }
+ }
+
+ /// <summary>
+ /// Current title of the main frame.
+ /// </summary>
+ public string Title
+ {
+ get
+ {
+ return Interop.ChromiumEwk.ewk_view_title_get(_realHandle);
+ }
+ }
+
+ /// <summary>
+ /// Current user agent string of this view.
+ /// </summary>
+ public string UserAgent
+ {
+ get
+ {
+ return Interop.ChromiumEwk.ewk_view_user_agent_get(_realHandle);
+ }
+
+ set
+ {
+ Interop.ChromiumEwk.ewk_view_user_agent_set(_realHandle, value);
+ }
+ }
+
+ /// <summary>
+ /// Whether a view has the focus.
+ /// </summary>
+ public bool HasFocus
+ {
+ get
+ {
+ return Interop.ChromiumEwk.ewk_view_focus_get(_realHandle);
+ }
+ }
+
+ /// <summary>
+ /// Create a WebView object.
+ /// </summary>
+ /// <param name="parent">Parent object of WebView</param>
+ public WebView(EvasObject parent) : base(parent)
+ {
+ InitializeSmartEvent();
+ }
+
+ /// <summary>
+ /// Gets the Context object of this view.
+ /// </summary>
+ /// <returns>The Context object of this view</returns>
+ public Context GetContext()
+ {
+ if (_context == null)
+ {
+ IntPtr contextHandle = Interop.ChromiumEwk.ewk_view_context_get(_realHandle);
+ if (contextHandle == IntPtr.Zero)
+ {
+ return null;
+ }
+ _context = new Context(contextHandle);
+ }
+ return _context;
+ }
+
+ /// <summary>
+ /// Gets the Settings object of this view.
+ /// </summary>
+ /// <returns>The Settings object of this view</returns>
+ public Settings GetSettings()
+ {
+ if (_settings == null)
+ {
+ IntPtr settingsHandle = Interop.ChromiumEwk.ewk_view_settings_get(_realHandle);
+ if (settingsHandle == IntPtr.Zero)
+ {
+ return null;
+ }
+ _settings = new Settings(settingsHandle);
+ }
+ return _settings;
+ }
+
+ /// <summary>
+ /// Asks the object to load the given URL.
+ /// </summary>
+ /// <remarks>
+ /// You can only be sure that url changed after UrlChanged event.
+ /// </remarks>
+ /// <param name="url">The uniform resource identifier to load</param>
+ public void LoadUrl(string url)
+ {
+ Interop.ChromiumEwk.ewk_view_url_set(_realHandle, url);
+ }
+
+ /// <summary>
+ /// Loads the specified html string as the content of the view.
+ /// </summary>
+ /// <param name="html">HTML data to load</param>
+ /// <param name="baseUrl">Base URL used for relative paths to external objects</param>
+ public void LoadHtml(string html, string baseUrl)
+ {
+ Interop.ChromiumEwk.ewk_view_html_string_load(_realHandle, html, baseUrl, null);
+ }
+
+ /// <summary>
+ /// Asks the main frame to stop loading.
+ /// </summary>
+ public void StopLoading()
+ {
+ Interop.ChromiumEwk.ewk_view_stop(_realHandle);
+ }
+
+ /// <summary>
+ /// Asks the main frame to reload the current document.
+ /// </summary>
+ public void Reload()
+ {
+ Interop.ChromiumEwk.ewk_view_reload(_realHandle);
+ }
+
+ /// <summary>
+ /// Asks the main frame to navigate back in history.
+ /// </summary>
+ public void GoBack()
+ {
+ Interop.ChromiumEwk.ewk_view_back(_realHandle);
+ }
+
+ /// <summary>
+ /// Asks the main frame to navigate forward in history.
+ /// </summary>
+ public void GoForward()
+ {
+ Interop.ChromiumEwk.ewk_view_forward(_realHandle);
+ }
+
+ /// <summary>
+ /// Checks whether it is possible to navigate backwards one item in history.
+ /// </summary>
+ /// <returns>Whether it is possible to navigate backwards one item in history</returns>
+ public bool CanGoBack()
+ {
+ return Interop.ChromiumEwk.ewk_view_back_possible(_realHandle);
+ }
+
+ /// <summary>
+ /// Checks whether it is possible to navigate forwards one item in history.
+ /// </summary>
+ /// <returns>Whether it is possible to navigate forwards one item in history</returns>
+ public bool CanGoForward()
+ {
+ return Interop.ChromiumEwk.ewk_view_forward_possible(_realHandle);
+ }
+
+ /// <summary>
+ /// Injects the supplied javascript message handler into the view.
+ /// </summary>
+ /// <param name="name"> The message callback</param>
+ /// <param name="handler">The name used to expose the object in JavaScript</param>
+ /// <returns>'true' on success, otherwise 'false'</returns>
+ public bool AddJavaScriptMessageHandler(string name, JavaScriptMessageHandler handler)
+ {
+ lock (_javaScriptMessageHandlerMap)
+ {
+ if (_javaScriptMessageHandlerMap.ContainsKey(name))
+ {
+ return false;
+ }
+ _javaScriptMessageHandlerMap[name] = handler;
+ }
+ Interop.ChromiumEwk.ScriptMessageCallback callback = (handle, message) =>
+ {
+ JavaScriptMessage convertedMessage = new JavaScriptMessage(message);
+ lock (_javaScriptMessageHandlerMap)
+ {
+ if (_javaScriptMessageHandlerMap.ContainsKey(convertedMessage.Name))
+ {
+ _javaScriptMessageHandlerMap[convertedMessage.Name](convertedMessage);
+ }
+ }
+ };
+ if (!Interop.ChromiumEwk.ewk_view_javascript_message_handler_add(_realHandle, callback, name))
+ {
+ lock (_javaScriptMessageHandlerMap)
+ {
+ _javaScriptMessageHandlerMap.Remove(name);
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /// <summary>
+ /// Requests the execution of given name and result to the JavaScript runtime.
+ /// </summary>
+ /// <param name="name">The name used to expose the object in JavaScript</param>
+ /// <param name="result">The result to the JavaScript runtime</param>
+ public void EvalWithResult(string name, string result)
+ {
+ Interop.ChromiumEwk.ewk_view_evaluate_javascript(_realHandle, name, result);
+ }
+
+ /// <summary>
+ /// Requests the execution of the given script.
+ /// </summary>
+ /// <param name="script">The JavaScript code string to execute</param>
+ public void Eval(string script)
+ {
+ Interop.ChromiumEwk.ewk_view_script_execute(_realHandle, script, null, IntPtr.Zero);
+ }
+
+ /// <summary>
+ /// Requests to set or unset a view as the currently focused one.
+ /// </summary>
+ /// <param name="focused">'true' to set the focus on the view, 'false' to remove the focus from the view</param>
+ public void SetFocus(bool focused)
+ {
+ Interop.ChromiumEwk.ewk_view_focus_set(_realHandle, focused);
+ }
+
+ protected override IntPtr CreateHandle(EvasObject parent)
+ {
+ // focus dummy
+ _handle = Interop.Elementary.elm_layout_add((IntPtr)parent);
+ Interop.Elementary.elm_layout_theme_set(_handle, "layout", "elm_widget", "default");
+ Interop.Elementary.elm_object_focus_allow_set(_handle, true);
+
+ IntPtr evas = Interop.Evas.evas_object_evas_get(parent);
+ _realHandle = Interop.ChromiumEwk.ewk_view_add(evas);
+ Interop.Elementary.elm_object_part_content_set(_handle, "elm.swallow.content", _realHandle);
+
+ return _handle;
+ }
+
+ private void InitializeSmartEvent()
+ {
+ // focus dummy
+ _focusIn = new SmartEvent(this, "focused");
+ _focusOut = new SmartEvent(this, "unfocused");
+
+ _focusIn.On += (s, e) => { ((WebView)s).SetFocus(true); };
+ _focusOut.On += (s, e) => { ((WebView)s).SetFocus(false); };
+
+ _loadStarted = new SmartEvent(this, _realHandle, "load,started");
+ _loadFinished = new SmartEvent(this, _realHandle, "load,finished");
+ _loadError = new SmartEvent<SmartCallbackLoadErrorArgs>(this, _realHandle, "load,error", SmartCallbackLoadErrorArgs.CreateFromSmartEvent);
+ _titleChanged = new SmartEvent<SmartCallbackArgs>(this, _realHandle, "title,changed", SmartCallbackArgs.CreateFromSmartEvent);
+ _urlChanged = new SmartEvent<SmartCallbackArgs>(this, _realHandle, "url,changed", SmartCallbackArgs.CreateFromSmartEvent);
+
+ _loadStarted.On += (s, e) => { LoadStarted?.Invoke(this, EventArgs.Empty); };
+ _loadFinished.On += (s, e) => { LoadFinished?.Invoke(this, EventArgs.Empty); };
+ _loadError.On += (s, e) => { LoadError?.Invoke(this, e); };
+ _titleChanged.On += (s, e) => { TitleChanged?.Invoke(this, e); };
+ _urlChanged.On += (s, e) => { UrlChanged?.Invoke(this, e); };
+ }
+ }
+}
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