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      1 /*
      2  * Copyright (C) 2011 Igalia S.L.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include "config.h"
     30 #include "TextInputController.h"
     31 
     32 #include "DumpRenderTree.h"
     33 #include "WebCoreSupport/DumpRenderTreeSupportGtk.h"
     34 #include <GOwnPtrGtk.h>
     35 #include <JavaScriptCore/JSObjectRef.h>
     36 #include <JavaScriptCore/JSRetainPtr.h>
     37 #include <JavaScriptCore/JSStringRef.h>
     38 #include <cstring>
     39 #include <webkit/webkit.h>
     40 
     41 static JSValueRef setMarkedTextCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
     42 {
     43     WebKitWebView* view = webkit_web_frame_get_web_view(mainFrame);
     44     if (!view)
     45         return JSValueMakeUndefined(context);
     46 
     47     if (argumentCount < 3)
     48         return JSValueMakeUndefined(context);
     49 
     50     JSStringRef string = JSValueToStringCopy(context, arguments[0], exception);
     51     g_return_val_if_fail((!exception || !*exception), JSValueMakeUndefined(context));
     52 
     53     size_t bufferSize = JSStringGetMaximumUTF8CStringSize(string);
     54     GOwnPtr<gchar> stringBuffer(static_cast<gchar*>(g_malloc(bufferSize)));
     55     JSStringGetUTF8CString(string, stringBuffer.get(), bufferSize);
     56     JSStringRelease(string);
     57 
     58     int start = static_cast<int>(JSValueToNumber(context, arguments[1], exception));
     59     g_return_val_if_fail((!exception || !*exception), JSValueMakeUndefined(context));
     60 
     61     int end = static_cast<int>(JSValueToNumber(context, arguments[2], exception));
     62     g_return_val_if_fail((!exception || !*exception), JSValueMakeUndefined(context));
     63 
     64     DumpRenderTreeSupportGtk::setComposition(view, stringBuffer.get(), start, end);
     65 
     66     return JSValueMakeUndefined(context);
     67 }
     68 
     69 static JSValueRef insertTextCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
     70 {
     71     WebKitWebView* view = webkit_web_frame_get_web_view(mainFrame);
     72     if (!view)
     73         return JSValueMakeUndefined(context);
     74 
     75     if (argumentCount < 1)
     76         return JSValueMakeUndefined(context);
     77 
     78     JSStringRef string = JSValueToStringCopy(context, arguments[0], exception);
     79     g_return_val_if_fail((!exception || !*exception), JSValueMakeUndefined(context));
     80 
     81     size_t bufferSize = JSStringGetMaximumUTF8CStringSize(string);
     82     GOwnPtr<gchar> stringBuffer(static_cast<gchar*>(g_malloc(bufferSize)));
     83     JSStringGetUTF8CString(string, stringBuffer.get(), bufferSize);
     84     JSStringRelease(string);
     85 
     86     DumpRenderTreeSupportGtk::confirmComposition(view, stringBuffer.get());
     87 
     88     return JSValueMakeUndefined(context);
     89 }
     90 
     91 static JSValueRef unmarkTextCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
     92 {
     93     WebKitWebView* view = webkit_web_frame_get_web_view(mainFrame);
     94     if (!view)
     95         return JSValueMakeUndefined(context);
     96 
     97     DumpRenderTreeSupportGtk::confirmComposition(view, 0);
     98     return JSValueMakeUndefined(context);
     99 }
    100 
    101 static JSValueRef firstRectForCharacterRangeCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
    102 {
    103     WebKitWebView* view = webkit_web_frame_get_web_view(mainFrame);
    104     if (!view)
    105         return JSValueMakeUndefined(context);
    106 
    107     if (argumentCount < 2)
    108         return JSValueMakeUndefined(context);
    109 
    110     int location = static_cast<int>(JSValueToNumber(context, arguments[0], exception));
    111     g_return_val_if_fail((!exception || !*exception), JSValueMakeUndefined(context));
    112 
    113     int length = static_cast<int>(JSValueToNumber(context, arguments[1], exception));
    114     g_return_val_if_fail((!exception || !*exception), JSValueMakeUndefined(context));
    115 
    116     GdkRectangle rect;
    117     if (!DumpRenderTreeSupportGtk::firstRectForCharacterRange(view, location, length, &rect))
    118         return JSValueMakeUndefined(context);
    119 
    120     JSValueRef arrayValues[4];
    121     arrayValues[0] = JSValueMakeNumber(context, rect.x);
    122     arrayValues[1] = JSValueMakeNumber(context, rect.y);
    123     arrayValues[2] = JSValueMakeNumber(context, rect.width);
    124     arrayValues[3] = JSValueMakeNumber(context, rect.height);
    125     JSObjectRef arrayObject = JSObjectMakeArray(context, 4, arrayValues, exception);
    126     g_return_val_if_fail((!exception || !*exception), JSValueMakeUndefined(context));
    127 
    128     return arrayObject;
    129 }
    130 
    131 static JSValueRef selectedRangeCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
    132 {
    133     WebKitWebView* view = webkit_web_frame_get_web_view(mainFrame);
    134     if (!view)
    135         return JSValueMakeUndefined(context);
    136 
    137     int start, end;
    138     if (!DumpRenderTreeSupportGtk::selectedRange(view, &start, &end))
    139         return JSValueMakeUndefined(context);
    140 
    141     JSValueRef arrayValues[2];
    142     arrayValues[0] = JSValueMakeNumber(context, start);
    143     arrayValues[1] = JSValueMakeNumber(context, end);
    144     JSObjectRef arrayObject = JSObjectMakeArray(context, 2, arrayValues, exception);
    145     g_return_val_if_fail((!exception || !*exception), JSValueMakeUndefined(context));
    146 
    147     return arrayObject;
    148 }
    149 
    150 static JSStaticFunction staticFunctions[] = {
    151     { "setMarkedText", setMarkedTextCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
    152     { "insertText", insertTextCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
    153     { "unmarkText", unmarkTextCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
    154     { "firstRectForCharacterRange", firstRectForCharacterRangeCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
    155     { "selectedRange", selectedRangeCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
    156     { 0, 0, 0 }
    157 };
    158 
    159 static JSClassRef getClass(JSContextRef context)
    160 {
    161     static JSClassRef textInputControllerClass = 0;
    162 
    163     if (!textInputControllerClass) {
    164         JSClassDefinition classDefinition = {
    165                 0, 0, 0, 0, 0, 0,
    166                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
    167         classDefinition.staticFunctions = staticFunctions;
    168 
    169         textInputControllerClass = JSClassCreate(&classDefinition);
    170     }
    171 
    172     return textInputControllerClass;
    173 }
    174 
    175 JSObjectRef makeTextInputController(JSContextRef context)
    176 {
    177     return JSObjectMake(context, getClass(context), 0);
    178 }
    179