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Features:
Requires multiple displays; the slides for the audience appear on an external display.
Distinct slides from the same slide set can be displayed and navigated independently on multiple external displays.
The speaker’s view is distinct from the audience’s view:
Display speakernotes.
Nice cheat sheet for interactive blackboard teaching.
Interact with other programs without the audience watching.
The speaker’s display shows all slides in a single HTML file, one after the other:
Multiple slides visible at the same time.
Rapid navigation.
Mnemonic keyboard shortcuts for the most important functions.
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Process your DocBook slides by
speaker.xsl, as well as by a regular,
chunking slides stylesheet.
Load the Speaker-styled (X)HTML file into the browser.
Type A (capital) to open or
switch to the audience’s primary view (making it
current) at the current slide.
Likewise, type B or
C to open or switch to the
audience’s secondary or tertiary view,
respectively.
A click on a slide’s H(ere) button loads it into the audience’s current view.
The speaker can navigate to other slides within the
current view (typically using
<space> and
<backspace>) using the paradigm
of two cursors indicated by colored
slide title bars:
The slide currently visible to the audience is marked in pastel yellow.
The slide currently active in the speaker’s view is marked in pastel blue.
If both coincide (the normal situation), the slide title is a saturated yellow.
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<arrow-up>,
<arrow-down>: Move
the speaker’s cursor back or forward by one
slide.
<arrow-left>,
<arrow-right>: Move
the speaker’s cursor back or forward in browsing
history.
<enter>: Move
the audience’s cursor to the speaker’s
cursor.
<backspace>,
<space>: Move both cursors back or forward by one slide.
s: Align the
speaker’s current slide with the top of the
speaker’s browser window (useful after using the scroll
bar).
a: Move the
speaker’s cursor to the audience’s cursor, and
align this slide with the top of the speaker’s browser
window.
c: Move the
speaker’s cursor to the ToC slide.
t: Move the
speaker’s cursor to the title slide.
A, B,
C: Select the respective
view and move the audience’s cursor to the
speaker’s cursor.
Other keys are not currently defined and are interpreted (or not) as usual by the browser.
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Internal links move
the speaker’s cursor to the slide containing the target;
the audience’s cursor is not affected. Thus, to follow
an internal link, one would typically click on the link and
then hit <enter>.
External links are currently not handled specially. In particular, if an external link is activated in the speaker’s view, the audience’s view remains unchanged.
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This will only work with browsers that support the HTML5 <video> tag:
autoplay, loop
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speaker.xslspeaker.xsl is a customization of
slides/xhtml/flat.xsl.
Principal extensions:
Creation of a slide title bar for each slide.
Loading of speaker.js.
Replacement of internal links by Javascript code.
Rendering of speakernotes.
Extensions that might be pushed back into
flat.xsl:
Association of id attributes to slides
(computed from chunk filenames).
Addition of a ToC.
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speaker.jsspeaker.js is loaded by the
speaker’s HTML file. These are its principal
actions:
Open new windows for the audience’s views.
Maintain the two cursors and their colored visualizations.
Intercept keystrokes and handle navigation.
If an audience’s window is closed, the
speaker’s view continues to function correctly. To
restore audience’s window, hit A,
B, or C.
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The Speaker Slide Extension has been developed and road tested during many years of university teaching.
There are no known bugs.
It has been used with Firefox, Chromium, DocBook 4.x, and
chunked slides output by
slides/xhtml/plain.xsl only.