зеркало из https://github.com/mozilla/pjs.git
600 строки
15 KiB
C++
600 строки
15 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* DOM object representing values in DOM computed style */
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#include "nsROCSSPrimitiveValue.h"
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#include "nsPresContext.h"
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#include "nsStyleUtil.h"
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#include "nsDOMCSSRGBColor.h"
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#include "nsIDOMRect.h"
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nsROCSSPrimitiveValue::nsROCSSPrimitiveValue()
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: mType(CSS_PX)
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{
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mValue.mAppUnits = 0;
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}
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nsROCSSPrimitiveValue::~nsROCSSPrimitiveValue()
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{
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Reset();
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}
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NS_IMPL_ADDREF(nsROCSSPrimitiveValue)
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NS_IMPL_RELEASE(nsROCSSPrimitiveValue)
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DOMCI_DATA(ROCSSPrimitiveValue, nsROCSSPrimitiveValue)
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// QueryInterface implementation for nsROCSSPrimitiveValue
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NS_INTERFACE_MAP_BEGIN(nsROCSSPrimitiveValue)
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NS_INTERFACE_MAP_ENTRY(nsIDOMCSSPrimitiveValue)
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NS_INTERFACE_MAP_ENTRY(nsIDOMCSSValue)
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(ROCSSPrimitiveValue)
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NS_INTERFACE_MAP_END
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// nsIDOMCSSValue
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NS_IMETHODIMP
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nsROCSSPrimitiveValue::GetCssText(nsAString& aCssText)
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{
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nsAutoString tmpStr;
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aCssText.Truncate();
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nsresult result = NS_OK;
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switch (mType) {
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case CSS_PX :
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{
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float val = nsPresContext::AppUnitsToFloatCSSPixels(mValue.mAppUnits);
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tmpStr.AppendFloat(val);
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tmpStr.AppendLiteral("px");
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break;
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}
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case CSS_IDENT :
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{
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AppendUTF8toUTF16(nsCSSKeywords::GetStringValue(mValue.mKeyword),
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tmpStr);
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break;
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}
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case CSS_STRING :
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case CSS_COUNTER : /* FIXME: COUNTER should use an object */
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{
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tmpStr.Append(mValue.mString);
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break;
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}
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case CSS_URI :
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{
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if (mValue.mURI) {
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nsCAutoString specUTF8;
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mValue.mURI->GetSpec(specUTF8);
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tmpStr.AssignLiteral("url(");
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nsStyleUtil::AppendEscapedCSSString(NS_ConvertUTF8toUTF16(specUTF8),
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tmpStr);
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tmpStr.AppendLiteral(")");
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} else {
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// XXXldb Any better ideas? It's good to have something that
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// doesn't parse so that things round-trip "correctly".
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tmpStr.Assign(NS_LITERAL_STRING("url(invalid-url:)"));
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}
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break;
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}
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case CSS_ATTR :
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{
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tmpStr.AppendLiteral("attr(");
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tmpStr.Append(mValue.mString);
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tmpStr.Append(PRUnichar(')'));
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break;
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}
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case CSS_PERCENTAGE :
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{
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tmpStr.AppendFloat(mValue.mFloat * 100);
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tmpStr.Append(PRUnichar('%'));
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break;
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}
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case CSS_NUMBER :
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{
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tmpStr.AppendFloat(mValue.mFloat);
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break;
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}
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case CSS_RECT :
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{
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NS_ASSERTION(mValue.mRect, "mValue.mRect should never be null");
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NS_NAMED_LITERAL_STRING(comma, ", ");
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nsCOMPtr<nsIDOMCSSPrimitiveValue> sideCSSValue;
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nsAutoString sideValue;
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tmpStr.AssignLiteral("rect(");
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// get the top
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result = mValue.mRect->GetTop(getter_AddRefs(sideCSSValue));
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if (NS_FAILED(result))
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break;
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result = sideCSSValue->GetCssText(sideValue);
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if (NS_FAILED(result))
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break;
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tmpStr.Append(sideValue + comma);
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// get the right
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result = mValue.mRect->GetRight(getter_AddRefs(sideCSSValue));
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if (NS_FAILED(result))
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break;
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result = sideCSSValue->GetCssText(sideValue);
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if (NS_FAILED(result))
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break;
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tmpStr.Append(sideValue + comma);
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// get the bottom
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result = mValue.mRect->GetBottom(getter_AddRefs(sideCSSValue));
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if (NS_FAILED(result))
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break;
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result = sideCSSValue->GetCssText(sideValue);
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if (NS_FAILED(result))
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break;
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tmpStr.Append(sideValue + comma);
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// get the left
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result = mValue.mRect->GetLeft(getter_AddRefs(sideCSSValue));
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if (NS_FAILED(result))
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break;
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result = sideCSSValue->GetCssText(sideValue);
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if (NS_FAILED(result))
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break;
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tmpStr.Append(sideValue + NS_LITERAL_STRING(")"));
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break;
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}
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case CSS_RGBCOLOR :
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{
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NS_ASSERTION(mValue.mColor, "mValue.mColor should never be null");
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NS_NAMED_LITERAL_STRING(comma, ", ");
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nsCOMPtr<nsIDOMCSSPrimitiveValue> colorCSSValue;
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nsAutoString colorValue;
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if (mValue.mColor->HasAlpha())
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tmpStr.AssignLiteral("rgba(");
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else
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tmpStr.AssignLiteral("rgb(");
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// get the red component
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result = mValue.mColor->GetRed(getter_AddRefs(colorCSSValue));
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if (NS_FAILED(result))
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break;
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result = colorCSSValue->GetCssText(colorValue);
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if (NS_FAILED(result))
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break;
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tmpStr.Append(colorValue + comma);
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// get the green component
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result = mValue.mColor->GetGreen(getter_AddRefs(colorCSSValue));
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if (NS_FAILED(result))
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break;
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result = colorCSSValue->GetCssText(colorValue);
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if (NS_FAILED(result))
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break;
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tmpStr.Append(colorValue + comma);
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// get the blue component
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result = mValue.mColor->GetBlue(getter_AddRefs(colorCSSValue));
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if (NS_FAILED(result))
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break;
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result = colorCSSValue->GetCssText(colorValue);
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if (NS_FAILED(result))
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break;
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tmpStr.Append(colorValue);
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if (mValue.mColor->HasAlpha()) {
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// get the alpha component
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result = mValue.mColor->GetAlpha(getter_AddRefs(colorCSSValue));
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if (NS_FAILED(result))
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break;
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result = colorCSSValue->GetCssText(colorValue);
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if (NS_FAILED(result))
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break;
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tmpStr.Append(comma + colorValue);
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}
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tmpStr.Append(NS_LITERAL_STRING(")"));
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break;
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}
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case CSS_S :
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{
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tmpStr.AppendFloat(mValue.mFloat);
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tmpStr.AppendLiteral("s");
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break;
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}
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case CSS_CM :
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case CSS_MM :
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case CSS_IN :
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case CSS_PT :
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case CSS_PC :
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case CSS_UNKNOWN :
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case CSS_EMS :
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case CSS_EXS :
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case CSS_DEG :
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case CSS_RAD :
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case CSS_GRAD :
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case CSS_MS :
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case CSS_HZ :
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case CSS_KHZ :
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case CSS_DIMENSION :
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NS_ERROR("We have a bogus value set. This should not happen");
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return NS_ERROR_DOM_INVALID_ACCESS_ERR;
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}
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if (NS_SUCCEEDED(result)) {
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aCssText.Assign(tmpStr);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsROCSSPrimitiveValue::SetCssText(const nsAString& aCssText)
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{
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return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
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}
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NS_IMETHODIMP
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nsROCSSPrimitiveValue::GetCssValueType(PRUint16* aValueType)
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{
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NS_ENSURE_ARG_POINTER(aValueType);
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*aValueType = nsIDOMCSSValue::CSS_PRIMITIVE_VALUE;
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return NS_OK;
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}
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// nsIDOMCSSPrimitiveValue
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NS_IMETHODIMP
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nsROCSSPrimitiveValue::GetPrimitiveType(PRUint16* aPrimitiveType)
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{
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NS_ENSURE_ARG_POINTER(aPrimitiveType);
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*aPrimitiveType = mType;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsROCSSPrimitiveValue::SetFloatValue(PRUint16 aUnitType, float aFloatValue)
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{
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return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
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}
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NS_IMETHODIMP
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nsROCSSPrimitiveValue::GetFloatValue(PRUint16 aUnitType, float* aReturn)
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{
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NS_ENSURE_ARG_POINTER(aReturn);
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*aReturn = 0;
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switch(aUnitType) {
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case CSS_PX :
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if (mType != CSS_PX)
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return NS_ERROR_DOM_INVALID_ACCESS_ERR;
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*aReturn = nsPresContext::AppUnitsToFloatCSSPixels(mValue.mAppUnits);
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break;
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case CSS_CM :
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if (mType != CSS_PX)
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return NS_ERROR_DOM_INVALID_ACCESS_ERR;
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*aReturn = mValue.mAppUnits * CM_PER_INCH_FLOAT /
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nsPresContext::AppUnitsPerCSSInch();
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break;
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case CSS_MM :
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if (mType != CSS_PX)
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return NS_ERROR_DOM_INVALID_ACCESS_ERR;
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*aReturn = mValue.mAppUnits * MM_PER_INCH_FLOAT /
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nsPresContext::AppUnitsPerCSSInch();
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break;
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case CSS_IN :
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if (mType != CSS_PX)
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return NS_ERROR_DOM_INVALID_ACCESS_ERR;
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*aReturn = mValue.mAppUnits / nsPresContext::AppUnitsPerCSSInch();
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break;
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case CSS_PT :
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if (mType != CSS_PX)
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return NS_ERROR_DOM_INVALID_ACCESS_ERR;
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*aReturn = mValue.mAppUnits * POINTS_PER_INCH_FLOAT /
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nsPresContext::AppUnitsPerCSSInch();
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break;
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case CSS_PC :
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if (mType != CSS_PX)
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return NS_ERROR_DOM_INVALID_ACCESS_ERR;
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*aReturn = mValue.mAppUnits * 6.0f /
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nsPresContext::AppUnitsPerCSSInch();
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break;
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case CSS_PERCENTAGE :
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if (mType != CSS_PERCENTAGE)
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return NS_ERROR_DOM_INVALID_ACCESS_ERR;
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*aReturn = mValue.mFloat * 100;
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break;
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case CSS_NUMBER :
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if (mType != CSS_NUMBER)
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return NS_ERROR_DOM_INVALID_ACCESS_ERR;
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*aReturn = mValue.mFloat;
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break;
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case CSS_UNKNOWN :
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case CSS_EMS :
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case CSS_EXS :
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case CSS_DEG :
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case CSS_RAD :
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case CSS_GRAD :
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case CSS_MS :
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case CSS_S :
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case CSS_HZ :
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case CSS_KHZ :
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case CSS_DIMENSION :
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case CSS_STRING :
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case CSS_URI :
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case CSS_IDENT :
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case CSS_ATTR :
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case CSS_COUNTER :
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case CSS_RECT :
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case CSS_RGBCOLOR :
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return NS_ERROR_DOM_INVALID_ACCESS_ERR;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsROCSSPrimitiveValue::SetStringValue(PRUint16 aStringType,
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const nsAString& aStringValue)
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{
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return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
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}
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NS_IMETHODIMP
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nsROCSSPrimitiveValue::GetStringValue(nsAString& aReturn)
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{
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switch (mType) {
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case CSS_IDENT:
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CopyUTF8toUTF16(nsCSSKeywords::GetStringValue(mValue.mKeyword), aReturn);
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break;
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case CSS_STRING:
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case CSS_ATTR:
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aReturn.Assign(mValue.mString);
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break;
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case CSS_URI: {
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nsCAutoString spec;
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if (mValue.mURI)
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mValue.mURI->GetSpec(spec);
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CopyUTF8toUTF16(spec, aReturn);
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} break;
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default:
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aReturn.Truncate();
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return NS_ERROR_DOM_INVALID_ACCESS_ERR;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsROCSSPrimitiveValue::GetCounterValue(nsIDOMCounter** aReturn)
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{
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return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
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}
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NS_IMETHODIMP
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nsROCSSPrimitiveValue::GetRectValue(nsIDOMRect** aReturn)
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{
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if (mType != CSS_RECT) {
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*aReturn = nsnull;
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return NS_ERROR_DOM_INVALID_ACCESS_ERR;
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}
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NS_ASSERTION(mValue.mRect, "mValue.mRect should never be null");
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NS_ADDREF(*aReturn = mValue.mRect);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsROCSSPrimitiveValue::GetRGBColorValue(nsIDOMRGBColor** aReturn)
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{
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if (mType != CSS_RGBCOLOR) {
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*aReturn = nsnull;
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return NS_ERROR_DOM_INVALID_ACCESS_ERR;
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}
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NS_ASSERTION(mValue.mColor, "mValue.mColor should never be null");
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NS_ADDREF(*aReturn = mValue.mColor);
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return NS_OK;
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}
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void
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nsROCSSPrimitiveValue::SetNumber(float aValue)
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{
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Reset();
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mValue.mFloat = aValue;
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mType = CSS_NUMBER;
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}
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void
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nsROCSSPrimitiveValue::SetNumber(PRInt32 aValue)
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{
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Reset();
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mValue.mFloat = float(aValue);
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mType = CSS_NUMBER;
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}
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void
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nsROCSSPrimitiveValue::SetNumber(PRUint32 aValue)
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{
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Reset();
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mValue.mFloat = float(aValue);
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mType = CSS_NUMBER;
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}
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void
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nsROCSSPrimitiveValue::SetPercent(float aValue)
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{
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Reset();
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mValue.mFloat = aValue;
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mType = CSS_PERCENTAGE;
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}
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void
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nsROCSSPrimitiveValue::SetAppUnits(nscoord aValue)
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{
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Reset();
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mValue.mAppUnits = aValue;
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mType = CSS_PX;
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}
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void
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nsROCSSPrimitiveValue::SetAppUnits(float aValue)
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{
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SetAppUnits(NSToCoordRound(aValue));
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}
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void
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nsROCSSPrimitiveValue::SetIdent(nsCSSKeyword aKeyword)
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{
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NS_PRECONDITION(aKeyword != eCSSKeyword_UNKNOWN &&
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0 <= aKeyword && aKeyword < eCSSKeyword_COUNT,
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"bad keyword");
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Reset();
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mValue.mKeyword = aKeyword;
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mType = CSS_IDENT;
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}
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// FIXME: CSS_STRING should imply a string with "" and a need for escaping.
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void
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nsROCSSPrimitiveValue::SetString(const nsACString& aString, PRUint16 aType)
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{
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Reset();
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mValue.mString = ToNewUnicode(aString);
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if (mValue.mString) {
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mType = aType;
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} else {
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// XXXcaa We should probably let the caller know we are out of memory
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mType = CSS_UNKNOWN;
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}
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}
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// FIXME: CSS_STRING should imply a string with "" and a need for escaping.
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void
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nsROCSSPrimitiveValue::SetString(const nsAString& aString, PRUint16 aType)
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{
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Reset();
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mValue.mString = ToNewUnicode(aString);
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if (mValue.mString) {
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mType = aType;
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} else {
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// XXXcaa We should probably let the caller know we are out of memory
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mType = CSS_UNKNOWN;
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}
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}
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void
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nsROCSSPrimitiveValue::SetURI(nsIURI *aURI)
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{
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Reset();
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mValue.mURI = aURI;
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NS_IF_ADDREF(mValue.mURI);
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mType = CSS_URI;
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}
|
|
|
|
void
|
|
nsROCSSPrimitiveValue::SetColor(nsDOMCSSRGBColor* aColor)
|
|
{
|
|
NS_PRECONDITION(aColor, "Null RGBColor being set!");
|
|
Reset();
|
|
mValue.mColor = aColor;
|
|
if (mValue.mColor) {
|
|
NS_ADDREF(mValue.mColor);
|
|
mType = CSS_RGBCOLOR;
|
|
}
|
|
else {
|
|
mType = CSS_UNKNOWN;
|
|
}
|
|
}
|
|
|
|
void
|
|
nsROCSSPrimitiveValue::SetRect(nsIDOMRect* aRect)
|
|
{
|
|
NS_PRECONDITION(aRect, "Null rect being set!");
|
|
Reset();
|
|
mValue.mRect = aRect;
|
|
if (mValue.mRect) {
|
|
NS_ADDREF(mValue.mRect);
|
|
mType = CSS_RECT;
|
|
}
|
|
else {
|
|
mType = CSS_UNKNOWN;
|
|
}
|
|
}
|
|
|
|
void
|
|
nsROCSSPrimitiveValue::SetTime(float aValue)
|
|
{
|
|
Reset();
|
|
mValue.mFloat = aValue;
|
|
mType = CSS_S;
|
|
}
|
|
|
|
void
|
|
nsROCSSPrimitiveValue::Reset()
|
|
{
|
|
switch (mType) {
|
|
case CSS_IDENT:
|
|
break;
|
|
case CSS_STRING:
|
|
case CSS_ATTR:
|
|
case CSS_COUNTER: // FIXME: Counter should use an object
|
|
NS_ASSERTION(mValue.mString, "Null string should never happen");
|
|
nsMemory::Free(mValue.mString);
|
|
mValue.mString = nsnull;
|
|
break;
|
|
case CSS_URI:
|
|
NS_IF_RELEASE(mValue.mURI);
|
|
break;
|
|
case CSS_RECT:
|
|
NS_ASSERTION(mValue.mRect, "Null Rect should never happen");
|
|
NS_RELEASE(mValue.mRect);
|
|
break;
|
|
case CSS_RGBCOLOR:
|
|
NS_ASSERTION(mValue.mColor, "Null RGBColor should never happen");
|
|
NS_RELEASE(mValue.mColor);
|
|
break;
|
|
}
|
|
}
|