diff options
Diffstat (limited to 'slideshow.py')
| -rw-r--r--[-rwxr-xr-x] | slideshow.py | 208 |
1 files changed, 122 insertions, 86 deletions
diff --git a/slideshow.py b/slideshow.py index 5634ff1..78f4488 100755..100644 --- a/slideshow.py +++ b/slideshow.py @@ -20,19 +20,21 @@ # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - -import os +import os, sys, subprocess +from time import strftime import gtk import xml.dom.minidom import gobject import logging from path import path from sugar.activity import activity +from sugar.datastore import datastore class Deck(gobject.GObject): - + __gsignals__ = { 'slide-changed' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ()), + 'decktitle-changed' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ()), 'slide-redraw' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ()), 'remove-path' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_INT,)), 'deck-changed' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ()), @@ -41,30 +43,45 @@ class Deck(gobject.GObject): 'instr-state-propagate' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_BOOLEAN,)), 'lock-state-propagate' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_BOOLEAN,)), 'ink-submitted' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_STRING, gobject.TYPE_STRING)), - 'ink-broadcast' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, + 'ink-broadcast' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_STRING)), 'update-submissions' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_INT,)), 'instructor-ink-cleared' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_INT,)), 'instructor-ink-removed' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_INT, gobject.TYPE_INT)), } - - def __init__(self, slidename, base="/nfs/show"): + + def __init__(self, sugaractivity, handle, rsrc, base="/nfs/show"): gobject.GObject.__init__(self) + self.__handle = handle + if self.__handle.object_id == None: + print 'slideshow - from home view' + else: + obj = datastore.get(self.__handle.object_id) + print 'object:', obj.get_file_path() self.__logger = logging.getLogger('Deck') self.__base = base + self.__rsrc = rsrc + self.__activity = sugaractivity self.__is_initiating = True self.__nav_locked = False self.__active_sub = -1 self.__self_text = "" self.__text_tag = None - self.__title_slide_name = slidename - - # Compute the path to the deck.xml file and read it if it exists; - # otherwise we'll create a new XML Document self.__xmlpath = os.path.join(base, "deck.xml") + #we always create a new presentation and copy over it on resume + if path(base).exists(): + #we can't have permissions.info for this to work + subprocess.call("cp -r " + base + " /home/olpc/save", shell=True) + subprocess.call("rm -rf " + base + '/*', shell=True) + else: + path.mkdir(base) + path.copy(self.__rsrc / 'deck.xml', base / 'deck.xml') + path.copy(self.__rsrc / 'title.html', base / 'title.html') + path.copy(self.__rsrc / 'title_thumb.png', base / 'title_thumb.png') self.reload() - + self.set_title('New') + def set_locked_mode(self, locked): """ Setter method for the navigation lock flag""" self.__logger.debug("Lock state: " +str(locked)) @@ -76,61 +93,70 @@ class Deck(gobject.GObject): self.__logger.debug("Instructor state: " +str(is_init)) self.__is_initiating = is_init self.emit('instr-state-propagate', is_init) - + def getIsInitiating(self): return self.__is_initiating + def make_title_slide(self, title): + #open and read title.html + self.__work_path = os.path.join(activity.get_activity_root(), 'instance') + deckpath = path(activity.get_activity_root()) / 'instance' / 'deck' + slide = open(deckpath / 'title.html', 'r') + txt = slide.read() + slide.close() + #here change title.html - change between <h1> and </h1> + h1pos = txt.find('<h1>') + h1end = txt.find('</h1>') + txtmod = txt[:h1pos+4] + title + txt[h1end:] + #here change date - change between <h3> and </h3> + h3pos = txtmod.find('<h3>') + h3end = txtmod.find('</h3>') + txt = txtmod[:h3pos+4] + strftime("%a, %b %d, %Y %H:%M") + txtmod[h3end:] + #save title.html and close + slide = open(deckpath / 'title.html', 'w') + slide.write(txt) + slide.close() + print 'title slide changed', title + def set_title(self, title): - self.__title = title + nodes = self.__dom.getElementsByTagName("title") + nodes[0].firstChild.data = title + self.make_title_slide(title) + self.save() + self.goToIndex(0, is_local=False) + self.emit('deck-changed') + print 'set_title', self.get_title() - def get_title(self, id): - print 'get_title', id, self.__title - if len(self.__title) > 0: - return self.__title - else: - return "no title" + def get_title(self): + nodes = self.__dom.getElementsByTagName("title") + return nodes[0].firstChild.data def reload(self): self.__logger.debug("Reading deck") + print 'reload:', self.__xmlpath if os.path.exists(self.__xmlpath): self.__dom = xml.dom.minidom.parse(self.__xmlpath) - else: - self.__dom = xml.dom.minidom.Document() - - # Look for the root deck element; create it if it's not there decks = self.__dom.getElementsByTagName("deck") - if len(decks) > 0: - self.__deck = decks[0] - nodes = self.__dom.getElementsByTagName("title") - if len(nodes) > 0: - self.__title = nodes[0].firstChild.data - else: - print 'no deck title', self.__dom.toprettyxml() - else: - self.__deck = self.__dom.createElement("deck") - self.__dom.appendChild(self.__deck) - self.__title = 'new' - title = self.__dom.createElement("title") - title.appendChild(self.__dom.createTextNode(self.__title)) - self.__deck.appendChild(title) - splash = self.__dom.createElement("slide") - layer = self.__dom.createElement("layer") - layer.appendChild(self.__dom.createTextNode(self.__title_slide_name)) - splash.appendChild(layer) - self.__deck.appendChild(splash) - print "Deck.__title=", self.__title - + self.__deck = decks[0] # Get the slides from the show self.__slides = self.__deck.getElementsByTagName("slide") self.__nslides = len(self.__slides) self.__logger.debug(str(self.__nslides) + " slides in show") self.goToIndex(0, is_local=False) - self.emit("deck-changed") - + print 'deck reloaded' + def save(self, path=None): """Writes the XML DOM in memory out to disk""" + print 'save:', path if not path: path = self.__xmlpath + + """ + print '***************save************************' + print self.__dom.toprettyxml() + print '***************save************************' + """ + outfile = open(path, "w") self.__dom.writexml(outfile) outfile.close() @@ -144,8 +170,11 @@ class Deck(gobject.GObject): for slide in slides: deck.appendChild(slide) dom.appendChild(deck) + print '*************rebuild**************************' + print dom.toprettyxml() + print '**********************************************' return dom - + def getDeckPath(self): """Returns the path to the folder that stores this slide deck""" return self.__base @@ -199,9 +228,11 @@ class Deck(gobject.GObject): newlayer.appendChild(txt) newslide.appendChild(newlayer) self.__deck.appendChild(newslide) - print 'added slide', self.__dom.toxml() + print '**************addSlide*************' + print self.__dom.toprettyxml() + print '***********************************' self.save() - + def removeSlide(self, n): del self.__slides[n] self.__dom = self.rebuild_dom("modified deck", self.__slides) @@ -226,7 +257,7 @@ class Deck(gobject.GObject): p = os.path.join(self.__base, l.firstChild.nodeValue) layers.append(p) return layers - + def getInstructorInk(self): self.__instructor_ink = [] instr = self.__slide.getElementsByTagName("instructor") @@ -236,7 +267,7 @@ class Deck(gobject.GObject): for pathstr in pathtags: self.__instructor_ink.append(pathstr.firstChild.nodeValue) return self.__instructor_ink - + def getSelfInkOrSubmission(self): if self.__active_sub == -1: return (self.__self_ink, self.__self_text) @@ -255,14 +286,14 @@ class Deck(gobject.GObject): pathlist.append(path.firstChild.nodeValue) return (pathlist, text) return None - + def setActiveSubmission(self, sub): self.__active_sub = sub self.emit('slide-redraw') - + def getActiveSubmission(self): return self.__active_sub - + def getSubmissionList(self, n=None): if n is None: n = self.__pos @@ -271,7 +302,7 @@ class Deck(gobject.GObject): for subtag in subtags: sublist.append(subtag.getAttribute("from")) return sublist - + def addSubmission(self, whofrom, inks, text="", n=None): if n is None: n = self.__pos @@ -298,7 +329,7 @@ class Deck(gobject.GObject): subs = slide.getElementsByTagName("submission") if n == self.__pos: self.emit('update-submissions', len(subs) - 1) - + def addInkToSlide(self, pathstr, islocal, n=None): """Adds ink to the current slide, or slide n if given. Instructor ink may be added to any slide; but it only makes sense to add student ink to the current slide (n will be ignored)""" @@ -338,7 +369,7 @@ class Deck(gobject.GObject): else: if n is None or n == self.__pos: self.emit("remote-ink-added", pathstr) - + def clearInk(self, n=None): if n is None: n = self.__pos @@ -351,7 +382,7 @@ class Deck(gobject.GObject): slide.removeChild(self_tag) self.__self_ink = [] self.__self_ink_tag = None - + def clearInstructorInk(self, n=None): if n is None: n = self.__pos @@ -363,7 +394,7 @@ class Deck(gobject.GObject): self.__instructor_ink = [] self.__instructor_tag = None self.emit('slide-redraw') - + def removeInstructorPathByUID(self, uid, n=None): if n is None: n = self.__pos @@ -380,7 +411,7 @@ class Deck(gobject.GObject): pathstr = path_tag.firstChild.nodeValue path_uid = 0 try: - path_uid = int(pathstr[0:pathstr.find(';')]) + path_uid = int(pathstr[0:pathstr.find(';')]) except Exception, e: pass if path_uid == uid: @@ -388,7 +419,7 @@ class Deck(gobject.GObject): needs_redraw = True if n == self.__pos and needs_redraw: self.emit('remove-path', uid) - + def removeLocalPathByUID(self, uid, n=None): if n is None: n = self.__pos @@ -408,21 +439,21 @@ class Deck(gobject.GObject): pathstr = path_tag.firstChild.nodeValue path_uid = 0 try: - path_uid = int(pathstr[0:pathstr.find(';')]) + path_uid = int(pathstr[0:pathstr.find(';')]) except Exception, e: pass if path_uid == uid: tag.removeChild(path_tag) - + def doSubmit(self): inks, text, whofrom = self.getSerializedInkSubmission() self.__logger.debug("Submitting ink: " + str(inks) + " text: " + text) self.emit('ink-submitted', inks, text) - + def doBroadcast(self): inks, text, whofrom = self.getSerializedInkSubmission() self.emit('ink-broadcast', whofrom, inks, text) - + def getSerializedInkSubmission(self): sub = "" text = "" @@ -454,17 +485,18 @@ class Deck(gobject.GObject): if path.firstChild: sub = sub + path.firstChild.nodeValue + "$" return sub, text, whofrom - + def getSlideThumb(self, n=-1): """Returns the full path to the thumbnail for this slide if it is defined; otherwise False""" if n == -1: n = self.__pos slide = self.__slides[n] + print slide.toprettyxml() thumbs = slide.getElementsByTagName("thumb") if len(thumbs) < 1: return False return os.path.join(self.__base, thumbs[0].firstChild.nodeValue) - + def setSlideThumb(self, filename, n=-1): """Sets the thumbnail for this slide to filename (provide a *relative* path!)""" if n == -1: @@ -476,7 +508,7 @@ class Deck(gobject.GObject): thumb = self.__dom.createElement("thumb") thumb.appendChild(self.__dom.createTextNode(filename)) slide.appendChild(thumb) - + def getSlideClip(self, n=-1): """Returns the full path to the audio clip for this slide if it is defined; otherwise False""" if n == -1: @@ -486,7 +518,7 @@ class Deck(gobject.GObject): if len(clip) < 1: return False return os.path.join(self.__base, clip[0].firstChild.nodeValue) - + def setSlideClip(self, filename, n=-1): """Sets the clip for this slide to filename (provide a *relative* path!)""" if n == -1: @@ -495,10 +527,10 @@ class Deck(gobject.GObject): clips = slide.getElementsByTagName("clip") for clip in clips: slide.removeChild(clip) - thumb = self.__dom.createElement("clip") - thumb.appendChild(self.__dom.createTextNode(filename)) - slide.appendChild(thumb) - + clip = self.__dom.createElement("clip") + clip.appendChild(self.__dom.createTextNode(filename)) + slide.appendChild(clip) + def setSlideText(self, textval): self.__self_text = textval if self.__text_tag: @@ -506,10 +538,13 @@ class Deck(gobject.GObject): self.__text_tag.firstChild.nodeValue = textval else: self.__text_tag.appendChild(self.__dom.createTextNode(textval)) - + def doNewIndex(self): """Updates any necessary state associated with moving to a new slide""" self.__slide = self.__slides[self.__pos] + #set slide title - entry text from xml + self.set_SlideTitle(self.__slide.getAttribute('title')) + self_ink = self.__slide.getElementsByTagName("self") self.__instructor_tag = None self.__self_ink_tag = None @@ -538,11 +573,12 @@ class Deck(gobject.GObject): self.__self_ink_tag.appendChild(self.__text_tag) if self.__text_tag.firstChild: self.__self_text = self.__text_tag.firstChild.nodeValue - + self.__activity.set_screen(0) + self.emit("slide-changed") self.emit("update-submissions", self.__active_sub) self.emit("slide-redraw") - + def goToIndex(self, index, is_local): """Jumps to the slide at the given index, if it's valid""" self.__logger.debug("Trying to change slides: locked? %u, instructor? %u, is_local? %u", @@ -557,39 +593,39 @@ class Deck(gobject.GObject): else: self.__pos = index print 'invalid index', index - + def getIndex(self): """Returns the index of the current slide""" return self.__pos - + def next(self): """Moves to the next slide""" self.goToIndex(self.__pos + 1, is_local=True) - + def previous(self): """Moves to the previous slide""" self.goToIndex(self.__pos - 1, is_local=True) - + def isAtBeginning(self): """Returns true if show is on the first slide in the deck""" if self.__nslides < 1: return True - + if self.__pos == 0: return True else: return False - + def isAtEnd(self): """Returns true if the show is at the last slide in the deck""" if self.__nslides < 1: return True - + if self.__pos == self.__nslides - 1: return True else: return False - + def getSlideDimensionsFromXML(self, n=-1): """Returns the dimensions for the slide at index n, if they're specified""" if n == -1: @@ -600,8 +636,8 @@ class Deck(gobject.GObject): if wstring != '' and hstring != '': return [float(wstring), float(hstring)] return False - + def getSlideCount(self): return self.__nslides - + gobject.type_register(Deck) |