eric6/Documentation/Source/eric6.UI.Previewers.PreviewerHTML.html

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<h1>eric6.UI.Previewers.PreviewerHTML</h1>

<p>
Module implementing a previewer widget for HTML, Markdown and ReST files.
</p>
<h3>Global Attributes</h3>

<table>
<tr><td>None</td></tr>
</table>
<h3>Classes</h3>

<table>

<tr>
<td><a href="#PreviewProcessingThread">PreviewProcessingThread</a></td>
<td>Class implementing a thread to process some text into HTML usable by the previewer view.</td>
</tr>
<tr>
<td><a href="#PreviewerHTML">PreviewerHTML</a></td>
<td>Class implementing a previewer widget for HTML, Markdown and ReST files.</td>
</tr>
<tr>
<td><a href="#_StrikeThroughExtension">_StrikeThroughExtension</a></td>
<td>Class is placed here, because it depends on imported markdown, and markdown import is lazy.</td>
</tr>
</table>
<h3>Functions</h3>

<table>
<tr><td>None</td></tr>
</table>
<hr />
<hr />
<a NAME="PreviewProcessingThread" ID="PreviewProcessingThread"></a>
<h2>PreviewProcessingThread</h2>

<p>
    Class implementing a thread to process some text into HTML usable by the
    previewer view.
</p>
<h3>Signals</h3>
<dl>

<dt>htmlReady(str, str, str)</dt>
<dd>
emitted with the file name, the processed
        HTML and the web site root path to signal the availability of the
        processed HTML
</dd>
</dl>
<h3>Derived from</h3>
QThread
<h3>Class Attributes</h3>

<table>
<tr><td>None</td></tr>
</table>
<h3>Class Methods</h3>

<table>
<tr><td>None</td></tr>
</table>
<h3>Methods</h3>

<table>

<tr>
<td><a href="#PreviewProcessingThread.__init__">PreviewProcessingThread</a></td>
<td>Constructor</td>
</tr>
<tr>
<td><a href="#PreviewProcessingThread.__convertMarkdown">__convertMarkdown</a></td>
<td>Private method to convert Markdown text into HTML.</td>
</tr>
<tr>
<td><a href="#PreviewProcessingThread.__convertReST">__convertReST</a></td>
<td>Private method to convert ReST text into HTML.</td>
</tr>
<tr>
<td><a href="#PreviewProcessingThread.__convertReSTDocutils">__convertReSTDocutils</a></td>
<td>Private method to convert ReST text into HTML using 'docutils'.</td>
</tr>
<tr>
<td><a href="#PreviewProcessingThread.__convertReSTSphinx">__convertReSTSphinx</a></td>
<td>Private method to convert ReST text into HTML using 'sphinx'.</td>
</tr>
<tr>
<td><a href="#PreviewProcessingThread.__getHtml">__getHtml</a></td>
<td>Private method to process the given text depending upon the given language.</td>
</tr>
<tr>
<td><a href="#PreviewProcessingThread.__processRootPath">__processRootPath</a></td>
<td>Private method to adjust absolute references to the given root path.</td>
</tr>
<tr>
<td><a href="#PreviewProcessingThread.__processSSI">__processSSI</a></td>
<td>Private method to process the given text for SSI statements.</td>
</tr>
<tr>
<td><a href="#PreviewProcessingThread.process">process</a></td>
<td>Public method to convert the given text to HTML.</td>
</tr>
<tr>
<td><a href="#PreviewProcessingThread.run">run</a></td>
<td>Public thread method to convert the stored data.</td>
</tr>
</table>
<h3>Static Methods</h3>

<table>
<tr><td>None</td></tr>
</table>

<a NAME="PreviewProcessingThread.__init__" ID="PreviewProcessingThread.__init__"></a>
<h4>PreviewProcessingThread (Constructor)</h4>
<b>PreviewProcessingThread</b>(<i>parent=None</i>)

<p>
        Constructor
</p>
<dl>

<dt><i>parent</i></dt>
<dd>
reference to the parent object (QObject)
</dd>
</dl>
<a NAME="PreviewProcessingThread.__convertMarkdown" ID="PreviewProcessingThread.__convertMarkdown"></a>
<h4>PreviewProcessingThread.__convertMarkdown</h4>
<b>__convertMarkdown</b>(<i>text, convertNewLineToBreak, htmlFormat</i>)

<p>
        Private method to convert Markdown text into HTML.
</p>
<dl>

<dt><i>text</i></dt>
<dd>
text to be processed (string)
</dd>
<dt><i>convertNewLineToBreak</i></dt>
<dd>
flag indicating to convert new lines
            to HTML break (Markdown only) (boolean)
</dd>
<dt><i>htmlFormat</i></dt>
<dd>
HTML format to be generated by markdown (string)
</dd>
</dl>
<dl>
<dt>Returns:</dt>
<dd>
processed HTML (string)
</dd>
</dl>
<a NAME="PreviewProcessingThread.__convertReST" ID="PreviewProcessingThread.__convertReST"></a>
<h4>PreviewProcessingThread.__convertReST</h4>
<b>__convertReST</b>(<i>text, useSphinx, restDocutilsHtmlFormat</i>)

<p>
        Private method to convert ReST text into HTML.
</p>
<dl>

<dt><i>text</i></dt>
<dd>
text to be processed (string)
</dd>
<dt><i>useSphinx</i></dt>
<dd>
flag indicating to use Sphinx to generate the
            ReST preview (boolean)
</dd>
<dt><i>restDocutilsHtmlFormat</i></dt>
<dd>
HTML format to be generated by docutils
            (string)
</dd>
</dl>
<dl>
<dt>Returns:</dt>
<dd>
processed HTML (string)
</dd>
</dl>
<a NAME="PreviewProcessingThread.__convertReSTDocutils" ID="PreviewProcessingThread.__convertReSTDocutils"></a>
<h4>PreviewProcessingThread.__convertReSTDocutils</h4>
<b>__convertReSTDocutils</b>(<i>text, htmlFormat</i>)

<p>
        Private method to convert ReST text into HTML using 'docutils'.
</p>
<dl>

<dt><i>text</i></dt>
<dd>
text to be processed (string)
</dd>
<dt><i>htmlFormat</i></dt>
<dd>
HTML format to be generated (string)
</dd>
</dl>
<dl>
<dt>Returns:</dt>
<dd>
processed HTML (string)
</dd>
</dl>
<a NAME="PreviewProcessingThread.__convertReSTSphinx" ID="PreviewProcessingThread.__convertReSTSphinx"></a>
<h4>PreviewProcessingThread.__convertReSTSphinx</h4>
<b>__convertReSTSphinx</b>(<i>text</i>)

<p>
        Private method to convert ReST text into HTML using 'sphinx'.
</p>
<dl>

<dt><i>text</i></dt>
<dd>
text to be processed (string)
</dd>
</dl>
<dl>
<dt>Returns:</dt>
<dd>
processed HTML (string)
</dd>
</dl>
<a NAME="PreviewProcessingThread.__getHtml" ID="PreviewProcessingThread.__getHtml"></a>
<h4>PreviewProcessingThread.__getHtml</h4>
<b>__getHtml</b>(<i>language, text, ssiEnabled, filePath, rootPath, useSphinx, convertNewLineToBreak, markdownHtmlFormat, restDocutilsHtmlFormat</i>)

<p>
        Private method to process the given text depending upon the given
        language.
</p>
<dl>

<dt><i>language</i></dt>
<dd>
language of the text (string)
</dd>
<dt><i>text</i></dt>
<dd>
to be processed (string)
</dd>
<dt><i>ssiEnabled</i></dt>
<dd>
flag indicating to do some (limited) SSI processing
            (boolean)
</dd>
<dt><i>filePath</i></dt>
<dd>
file path of the text (string)
</dd>
<dt><i>rootPath</i></dt>
<dd>
root path to be used for SSI processing (str)
</dd>
<dt><i>useSphinx</i></dt>
<dd>
flag indicating to use Sphinx to generate the
            ReST preview (boolean)
</dd>
<dt><i>convertNewLineToBreak</i></dt>
<dd>
flag indicating to convert new lines
            to HTML break (Markdown only) (boolean)
</dd>
<dt><i>markdownHtmlFormat</i></dt>
<dd>
HTML format to be generated by markdown
            (string)
</dd>
<dt><i>restDocutilsHtmlFormat</i></dt>
<dd>
HTML format to be generated by docutils
            (string)
</dd>
</dl>
<dl>
<dt>Returns:</dt>
<dd>
processed HTML text (string)
</dd>
</dl>
<a NAME="PreviewProcessingThread.__processRootPath" ID="PreviewProcessingThread.__processRootPath"></a>
<h4>PreviewProcessingThread.__processRootPath</h4>
<b>__processRootPath</b>(<i>txt, root</i>)

<p>
        Private method to adjust absolute references to the given root path.
</p>
<dl>

<dt><i>txt</i> (str)</dt>
<dd>
text to be processed
</dd>
<dt><i>root</i> (str)</dt>
<dd>
directory of the document root
</dd>
</dl>
<dl>
<dt>Returns:</dt>
<dd>
processed HTML
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
str
</dd>
</dl>
<a NAME="PreviewProcessingThread.__processSSI" ID="PreviewProcessingThread.__processSSI"></a>
<h4>PreviewProcessingThread.__processSSI</h4>
<b>__processSSI</b>(<i>txt, filename, root</i>)

<p>
        Private method to process the given text for SSI statements.
</p>
<p>
        Note: Only a limited subset of SSI statements are supported.
</p>
<dl>

<dt><i>txt</i></dt>
<dd>
text to be processed (string)
</dd>
<dt><i>filename</i></dt>
<dd>
name of the file associated with the given text
            (string)
</dd>
<dt><i>root</i></dt>
<dd>
directory of the document root (string)
</dd>
</dl>
<dl>
<dt>Returns:</dt>
<dd>
processed HTML (string)
</dd>
</dl>
<a NAME="PreviewProcessingThread.process" ID="PreviewProcessingThread.process"></a>
<h4>PreviewProcessingThread.process</h4>
<b>process</b>(<i>filePath, language, text, ssiEnabled, rootPath, useSphinx, convertNewLineToBreak, markdownHtmlFormat, restDocutilsHtmlFormat</i>)

<p>
        Public method to convert the given text to HTML.
</p>
<dl>

<dt><i>filePath</i></dt>
<dd>
file path of the text (string)
</dd>
<dt><i>language</i></dt>
<dd>
language of the text (string)
</dd>
<dt><i>text</i></dt>
<dd>
text to be processed (string)
</dd>
<dt><i>ssiEnabled</i></dt>
<dd>
flag indicating to do some (limited) SSI processing
            (boolean)
</dd>
<dt><i>rootPath</i></dt>
<dd>
root path to be used for SSI processing (str)
</dd>
<dt><i>useSphinx</i></dt>
<dd>
flag indicating to use Sphinx to generate the
            ReST preview (boolean)
</dd>
<dt><i>convertNewLineToBreak</i></dt>
<dd>
flag indicating to convert new lines
            to HTML break (Markdown only) (boolean)
</dd>
<dt><i>markdownHtmlFormat</i></dt>
<dd>
HTML format to be generated by markdown
            (string)
</dd>
<dt><i>restDocutilsHtmlFormat</i></dt>
<dd>
HTML format to be generated by docutils
            (string)
</dd>
</dl>
<a NAME="PreviewProcessingThread.run" ID="PreviewProcessingThread.run"></a>
<h4>PreviewProcessingThread.run</h4>
<b>run</b>(<i></i>)

<p>
        Public thread method to convert the stored data.
</p>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="PreviewerHTML" ID="PreviewerHTML"></a>
<h2>PreviewerHTML</h2>

<p>
    Class implementing a previewer widget for HTML, Markdown and ReST files.
</p>
<h3>Derived from</h3>
QWidget
<h3>Class Attributes</h3>

<table>
<tr><td>None</td></tr>
</table>
<h3>Class Methods</h3>

<table>
<tr><td>None</td></tr>
</table>
<h3>Methods</h3>

<table>

<tr>
<td><a href="#PreviewerHTML.__init__">PreviewerHTML</a></td>
<td>Constructor</td>
</tr>
<tr>
<td><a href="#PreviewerHTML.__execJavaScript">__execJavaScript</a></td>
<td>Private function to execute a JavaScript function Synchroneously.</td>
</tr>
<tr>
<td><a href="#PreviewerHTML.__restoreScrollBarPositions">__restoreScrollBarPositions</a></td>
<td>Private method to restore scroll bar positions for a previewed editor.</td>
</tr>
<tr>
<td><a href="#PreviewerHTML.__saveScrollBarPositions">__saveScrollBarPositions</a></td>
<td>Private method to save scroll bar positions for a previewed editor.</td>
</tr>
<tr>
<td><a href="#PreviewerHTML.__setHtml">__setHtml</a></td>
<td>Private method to set the HTML to the view and restore the scroll bars positions.</td>
</tr>
<tr>
<td><a href="#PreviewerHTML.__setJavaScriptEnabled">__setJavaScriptEnabled</a></td>
<td>Private method to enable/disable JavaScript.</td>
</tr>
<tr>
<td><a href="#PreviewerHTML.__showLink">__showLink</a></td>
<td>Private slot to show the hovered link in a tooltip.</td>
</tr>
<tr>
<td><a href="#PreviewerHTML.on_jsCheckBox_clicked">on_jsCheckBox_clicked</a></td>
<td>Private slot to enable/disable JavaScript.</td>
</tr>
<tr>
<td><a href="#PreviewerHTML.on_previewView_titleChanged">on_previewView_titleChanged</a></td>
<td>Private slot to handle a change of the title.</td>
</tr>
<tr>
<td><a href="#PreviewerHTML.on_ssiCheckBox_clicked">on_ssiCheckBox_clicked</a></td>
<td>Private slot to enable/disable SSI.</td>
</tr>
<tr>
<td><a href="#PreviewerHTML.processEditor">processEditor</a></td>
<td>Public slot to process an editor's text.</td>
</tr>
<tr>
<td><a href="#PreviewerHTML.resultCallback">resultCallback</a></td>
<td></td>
</tr>
<tr>
<td><a href="#PreviewerHTML.shutdown">shutdown</a></td>
<td>Public method to perform shutdown actions.</td>
</tr>
</table>
<h3>Static Methods</h3>

<table>
<tr><td>None</td></tr>
</table>

<a NAME="PreviewerHTML.__init__" ID="PreviewerHTML.__init__"></a>
<h4>PreviewerHTML (Constructor)</h4>
<b>PreviewerHTML</b>(<i>parent=None</i>)

<p>
        Constructor
</p>
<dl>

<dt><i>parent</i></dt>
<dd>
reference to the parent widget (QWidget)
</dd>
</dl>
<a NAME="PreviewerHTML.__execJavaScript" ID="PreviewerHTML.__execJavaScript"></a>
<h4>PreviewerHTML.__execJavaScript</h4>
<b>__execJavaScript</b>(<i>script</i>)

<p>
        Private function to execute a JavaScript function Synchroneously.
</p>
<dl>

<dt><i>script</i> (str)</dt>
<dd>
JavaScript script source to be executed
</dd>
</dl>
<dl>
<dt>Returns:</dt>
<dd>
result of the script
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
depending upon script result
</dd>
</dl>
<a NAME="PreviewerHTML.__restoreScrollBarPositions" ID="PreviewerHTML.__restoreScrollBarPositions"></a>
<h4>PreviewerHTML.__restoreScrollBarPositions</h4>
<b>__restoreScrollBarPositions</b>(<i></i>)

<p>
        Private method to restore scroll bar positions for a previewed editor.
</p>
<a NAME="PreviewerHTML.__saveScrollBarPositions" ID="PreviewerHTML.__saveScrollBarPositions"></a>
<h4>PreviewerHTML.__saveScrollBarPositions</h4>
<b>__saveScrollBarPositions</b>(<i></i>)

<p>
        Private method to save scroll bar positions for a previewed editor.
</p>
<a NAME="PreviewerHTML.__setHtml" ID="PreviewerHTML.__setHtml"></a>
<h4>PreviewerHTML.__setHtml</h4>
<b>__setHtml</b>(<i>filePath, html, rootPath</i>)

<p>
        Private method to set the HTML to the view and restore the scroll bars
        positions.
</p>
<dl>

<dt><i>filePath</i> (str)</dt>
<dd>
file path of the previewed editor
</dd>
<dt><i>html</i> (str)</dt>
<dd>
processed HTML text ready to be shown
</dd>
<dt><i>rootPath</i> (str)</dt>
<dd>
path of the web site root
</dd>
</dl>
<a NAME="PreviewerHTML.__setJavaScriptEnabled" ID="PreviewerHTML.__setJavaScriptEnabled"></a>
<h4>PreviewerHTML.__setJavaScriptEnabled</h4>
<b>__setJavaScriptEnabled</b>(<i>enable</i>)

<p>
        Private method to enable/disable JavaScript.
</p>
<dl>

<dt><i>enable</i></dt>
<dd>
flag indicating the enable state (boolean)
</dd>
</dl>
<a NAME="PreviewerHTML.__showLink" ID="PreviewerHTML.__showLink"></a>
<h4>PreviewerHTML.__showLink</h4>
<b>__showLink</b>(<i>urlStr</i>)

<p>
        Private slot to show the hovered link in a tooltip.
</p>
<dl>

<dt><i>urlStr</i> (str)</dt>
<dd>
hovered URL
</dd>
</dl>
<a NAME="PreviewerHTML.on_jsCheckBox_clicked" ID="PreviewerHTML.on_jsCheckBox_clicked"></a>
<h4>PreviewerHTML.on_jsCheckBox_clicked</h4>
<b>on_jsCheckBox_clicked</b>(<i>checked</i>)

<p>
        Private slot to enable/disable JavaScript.
</p>
<dl>

<dt><i>checked</i></dt>
<dd>
state of the checkbox (boolean)
</dd>
</dl>
<a NAME="PreviewerHTML.on_previewView_titleChanged" ID="PreviewerHTML.on_previewView_titleChanged"></a>
<h4>PreviewerHTML.on_previewView_titleChanged</h4>
<b>on_previewView_titleChanged</b>(<i>title</i>)

<p>
        Private slot to handle a change of the title.
</p>
<dl>

<dt><i>title</i></dt>
<dd>
new title (string)
</dd>
</dl>
<a NAME="PreviewerHTML.on_ssiCheckBox_clicked" ID="PreviewerHTML.on_ssiCheckBox_clicked"></a>
<h4>PreviewerHTML.on_ssiCheckBox_clicked</h4>
<b>on_ssiCheckBox_clicked</b>(<i>checked</i>)

<p>
        Private slot to enable/disable SSI.
</p>
<dl>

<dt><i>checked</i></dt>
<dd>
state of the checkbox (boolean)
</dd>
</dl>
<a NAME="PreviewerHTML.processEditor" ID="PreviewerHTML.processEditor"></a>
<h4>PreviewerHTML.processEditor</h4>
<b>processEditor</b>(<i>editor=None</i>)

<p>
        Public slot to process an editor's text.
</p>
<dl>

<dt><i>editor</i></dt>
<dd>
editor to be processed (Editor)
</dd>
</dl>
<a NAME="PreviewerHTML.resultCallback" ID="PreviewerHTML.resultCallback"></a>
<h4>PreviewerHTML.resultCallback</h4>
<b>resultCallback</b>(<i>resDict=resultDict</i>)

<a NAME="PreviewerHTML.shutdown" ID="PreviewerHTML.shutdown"></a>
<h4>PreviewerHTML.shutdown</h4>
<b>shutdown</b>(<i></i>)

<p>
        Public method to perform shutdown actions.
</p>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="_StrikeThroughExtension" ID="_StrikeThroughExtension"></a>
<h2>_StrikeThroughExtension</h2>

<p>
                Class is placed here, because it depends on imported markdown,
                and markdown import is lazy.
</p>
<p>
                (see https://pythonhosted.org/Markdown/extensions/api.html
                this page for details)
</p>
<h3>Derived from</h3>
markdown.Extension
<h3>Class Attributes</h3>

<table>
<tr><td>DEL_RE</td></tr>
</table>
<h3>Class Methods</h3>

<table>
<tr><td>None</td></tr>
</table>
<h3>Methods</h3>

<table>

<tr>
<td><a href="#_StrikeThroughExtension.extendMarkdown">extendMarkdown</a></td>
<td></td>
</tr>
</table>
<h3>Static Methods</h3>

<table>
<tr><td>None</td></tr>
</table>

<a NAME="_StrikeThroughExtension.extendMarkdown" ID="_StrikeThroughExtension.extendMarkdown"></a>
<h4>_StrikeThroughExtension.extendMarkdown</h4>
<b>extendMarkdown</b>(<i>md, md_globals</i>)

<div align="right"><a href="#top">Up</a></div>
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